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mondofacto - Online Medical Dictionary Category: Health and Medicine > Medical Dictionary Date & country: 26/01/2008, UK Words: 116197

lilac
1. <botany> A shrub of the genus Syringa. There are six species, natives of Europe and Asia. Syringa vulgaris, the common lilac, and S. Persica, the Persian lilac, are frequently cultivated for the fragrance and beauty of their purplish or white flowers. In the British colonies various other shrubs have this name. ... 2. A light purplish colou …

liliaceae
A monocot family within the order liliales. Members include many common garden plants such as the lily, onion, yam, aloe, yucca, and colchicum. ... (12 Dec 1998) ...

Lillie, Ralph
<person> U.S. Pathologist, 1896-1979. ... See: Glenner-Lillie stain for pituitary. See entries under stain. ... (05 Mar 2000) ...

Lillie's azure-eosin stain
<technique> A stain in which an azure eosinate solution is used to stain bacteria and rickettsiae in tissues. ... (05 Mar 2000) ...

Lillie's ferrous iron stain
<technique> A method using potassium ferrocyanide in acetic acid which demonstrates melanins as a deep green colour; lipofuscins and haem pigments are unreactive. ... (05 Mar 2000) ...

lilliputian hallucination
Hallucination of reduced size of objects or persons. ... (05 Mar 2000) ...

Lilly, John
<person> U.S. Physiologist, *1915. ... See: Silverman-Lilly pneumotachograph. ... (05 Mar 2000) ...

lily
Origin: AS. Lilie, L. Lilium, Gr. Cf. Flower-de-luce. ... 1. <botany> A plant and flower of the genus Lilium, endogenous bulbous plants, having a regular perianth of six coloured pieces, six stamens, and a superior three-celled ovary. ... There are nearly fifty species, all found in the North Temperate zone. Lilium candidum and L. Longiflorum a …

LIM domain
Domain found in proteins required for developmental decisions. Contain 60 residue conserved, cysteine rich, repeats. Named after first 3 genes in group: Lin 11 (C. Elegans required for asymmetric division of blast cells), IsI 1 (mammalian insulin gene binding enhancer protein), mec 3 (C. Elegans required for differentiation of a set of sensory neur …

LIM kinase
<enzyme> Contains two tandem repeats of the lim/double zinc finger motif; isolated from chicken lung; genbank d26310 ... Registry number: EC 2.7.1.- ... Synonym: lim-kinase, limk protein ... (26 Jun 1999) ...

lim naea
<marine biology, zoology> A genus of fresh water air-breathing mollusks, abundant in ponds and streams. ... Synonym: pond snail. ... Alternative forms: Lymnaea. ... Origin: NL, fr. Gr. Pertaining to a marsh, fr. A marsh. ... (19 Mar 1998) ...

limax
<marine biology> A genus of airbreathing mollusks, including the common garden slugs. They have a small rudimentary shell. The breathing pore is on the right side of the neck. Several species are troublesome in gardens. See Slug. ... Origin: L. ... (19 Mar 1998) ...

limb
A leg or arm. ... A branch of a tree. ... The upper, free, spreading portion of a corolla or perianth that is connate at the base. ... (09 Oct 1997) ...

limb bud
The limbs of vertebrates start as outpushings of mesenchyme surrounded by a simple epithelium. The distal region is referred to as the progress zone. There has been extensive study of positional information within the limb bud that determines, for example: the proximal distal pattern of bone development and the anterior posterior specification of d …

limb deformities, congenital
Congenital structural deformities of the upper and lower extremities collectively or unspecified. ... (12 Dec 1998) ...

limb lead
One of the three standard leads (leads I, II, III) or one of the unipolar limb lead's (aVR, aVL, aVF). ... (05 Mar 2000) ...

limb myokymia
Myokymia present in one or more limbs; various causes, one of the more common being prior plexus radiation. ... (05 Mar 2000) ...

limb of helix
Synonym for crus of helix ... A transverse ridge continuing backward from the helix of the auricle, dividing the concha into an upper portion (cymba) and a lower portion (cavity of concha). ... Synonym: crus helicis, crista helicis, limb of helix. ... (05 Mar 2000) ...

limb-girdle muscular dystrophy
One of the less well-defined types of muscular dystrophy, probably heterogenous in nature. Onset usually in childhood or early adulthood and both sexes affected. Characterised by weakness and wasting, usually symmetrical, of the pelvic girdle muscles, the shoulder girdle muscles, or both, but not the facial muscles. Muscle pseudohypertrophy, heart …

limb-kinetic apraxia
Synonym for motor apraxia ... An inability to make movements or to use objects for the purpose intended. ... Synonym: cortical apraxia, innervation apraxia, limb-kinetic apraxia. ... (05 Mar 2000) ...

limber
1. The shafts or thills of a wagon or carriage. ... 2. The detachable fore part of a gun carriage, consisting of two wheels, an axle, and a shaft to which the horses are attached. On top is an ammunition box upon which the cannoneers sit. ... 3. Gutters or conduits on each side of the keelson to afford a passage for water to the pump well. ... <med …

limbi palpebrales
Synonym for borders of eyelids ... The anterior and posterior edges of the free margin of the upper and lower eyelids. ... Synonym: limbi palpebrales. ... (05 Mar 2000) ...

limbic
<anatomy> Pertaining to a limbus or margin, forming a border around. ... (18 Nov 1997) ...

limbic lobe
As originally defined by P. Broca: the nearly closed ring of the brain structures surrounding the hilus, or margin, of the cerebral hemisphere of mammals; it is composed of the fornicate gyrus (cingulate gyrus and parahippocampal gyrus), the hippocampus, and the amygdala. ... See: limbic system. ... (05 Mar 2000) ...

limbic system
Collective term denoting a heterogeneous array of brain structures at or near the edge (limbus) of the medial wall of the cerebral hemisphere, in particular the hippocampus, amygdala, and fornicate gyrus; the term is often used so as to include also the interconnections of these structures, as well as their connections with the septal area, the hyp …

limbs of bony semicircular canals
Synonym for crura of bony semicircular canals ... The extremities of the bony semicircular canals in which the corresponding membranous limbs of the semicircular ducts are located; they are the common bony crus, simple bony crus, and ampullary bony crus. ... Synonym: crura ossea canalium semicircularium, limbs of bony semicircular canals. ... (05 Mar …

limbus
1. An extramundane region where certain classes of souls were supposed to await the judgment. 'As far from help as Limbo is from bliss.' (Shak) 'A Limbo large and broad, since called The Paradise of fools.' (Milton) ... The limbus patrum was considered as a place for the souls of good men who lived before the coming of our Savior. The limbus infanti …

limbus acetabuli
Synonym for margin of acetabulum ... The rim of bone around the acetabulum to which is attached the labrum acetabulare. ... Synonym: limbus acetabuli, margo acetabularis. ... (05 Mar 2000) ...

limbus alveolaris
Synonym for alveolar arch of mandible ... The free margin of the alveolar process of the mandible. ... Synonym: arcus alveolaris mandibulae, limbus alveolaris. ... (05 Mar 2000) ...

limbus corneae
An annular transitional zone, approximately 1 mm wide, between the cornea and the bulbar conjunctiva and sclera. It is highly vascular and is involved in the metabolism of the cornea. It is ophthalmologically significant in that it appears on the outer surface of the eyeball as a slight furrow, marking the line between the clear cornea and the scle …

limbus fossae ovalis
A muscular ring surrounding the fossa ovalis in the wall of the right atrium of the heart. ... Synonym: annulus ovalis, margin of fossa ovalis, Vieussens' annulus, Vieussens' isthmus, Vieussens' limbus, Vieussens' ring. ... (05 Mar 2000) ...

limbus laminae spiralis osseae
Synonym for limbus of bony spiral lamina ... The border of the spiral lamina; the thickened periosteum covering the upper plate of the bony spiral lamina of the cochlea. ... Synonym: limbus laminae spiralis osseae. ... (05 Mar 2000) ...

limbus membranae tympani
Synonym for limbus of tympanic membrane ... Margin of the tympanic membrane attaching to the tympanic sulcus. ... Synonym: limbus membranae tympani. ... (05 Mar 2000) ...

limbus of bony spiral lamina
The border of the spiral lamina; the thickened periosteum covering the upper plate of the bony spiral lamina of the cochlea. ... Synonym: limbus laminae spiralis osseae. ... (05 Mar 2000) ...

limbus of cornea
The margin of the cornea overlapped by the sclera. ... Synonym: limbus corneae, corneal margin, sclerocorneal junction. ... (05 Mar 2000) ...

limbus of tympanic membrane
Margin of the tympanic membrane attaching to the tympanic sulcus. ... Synonym: limbus membranae tympani. ... (05 Mar 2000) ...

limbus palpebrales anteriores
Synonym for anterior border of eyelids ... The anterior edge of the free margin of each eyelid, along close to which the eyelashes are embedded. ... Synonym: limbus palpebrales anteriores. ... (05 Mar 2000) ...

limbus penicillatus
Synonym for brush border ... <pathology> The densely packed microvilli on the apical surface of, for example: intestinal epithelial cells. ... (18 Nov 1997) ...

limbus striatus
Synonym for striated border ... Obsolete term for the apical surface of an epithelium with microvilli. ... (18 Nov 1997) ...

lime
1. To smear with a viscous substance, as birdlime. 'These twigs, in time, will come to be limed.' (L'Estrange) ... 2. To entangle; to insnare. 'We had limed ourselves With open eyes, and we must take the chance.' (Tennyson) ... 3. To treat with lime, or oxide or hydrate of calcium; to manure with lime; as, to lime hides for removing the hair; to lime …

lime water
Calcium hydroxide solution; a saturated solution prepared by mixing 3 g of calcium hydroxide in a liter of purified cool water. Undissolved calcium hydroxide is allowed to precipitate and the solution is dispensed without agitation; lime water is a common ingredient in lotions and is used internally extensively in veterinary medicine. ... (05 Mar 20 …

limen
Entrance; the external opening of a canal or space, such as limen insulae. ... Synonym: threshold. ... Origin: L. ... (05 Mar 2000) ...

limen insulae
The band of transition between the anterior portion of the gray matter of the insula and the anterior perforated substance; it is formed by a narrow strip of olfactory cortex along the lateral side of the lateral olfactory stria. ... Synonym: threshold of island of Reil. ... (05 Mar 2000) ...

limen nasi
A ridge marking the boundary between the nasal cavity proper and the vestibule. ... Synonym: threshold of nose. ... (05 Mar 2000) ...

limerence
Emotional excitement of being in love. ... (05 Mar 2000) ...

limes
A boundary, limit, or threshold. ... See: L doses. ... Origin: L. ... (05 Mar 2000) ...

liminal
1. Pertaining to a threshold. ... 2. Pertaining to a stimulus just strong enough to excite a tissue, e.g., nerve or muscle. ... Origin: L. Limen (limin-), a threshold ... (05 Mar 2000) ...

liminal stimulus
Synonym for threshold stimulus ... A stimulus of threshold strength, i.e., one just strong enough to excite. ... See: adequate stimulus. ... Synonym: liminal stimulus. ... (05 Mar 2000) ...

liminal trait
Synonym for threshold trait ... A trait that falls into natural groups that originate not in categorically distinct causes but in whether or not the outcome attains critical values; e.g., gallstones may result from a categorical cause or from unusual levels of causal factors that themselves show no evidence of grouping. ... Synonym: liminal trait. …

liminometer
An instrument for measuring the strength of a stimulus which is barely sufficient to produce a reflex response. ... Origin: L. Limen, threshold, + G. Metron, measure ... (05 Mar 2000) ...

limit
1. That which terminates, circumscribes, restrains, or confines; the bound, border, or edge; the utmost extent; as, the limit of a walk, of a town, of a country; the limits of human knowledge or endeavor. 'As eager of the chase, the maid Beyond the forest's verdant limits strayed.' (Pope) ... 2. The space or thing defined by limits. 'The archdeacon …

limit dextrin
The polysaccharide fragments remaining at the end (limit) of exhaustive hydrolysis of amylopectin or glycogen by alpha-1,4-glucan maltohydrolase, which cannot hydrolyze the alpha-1,6 bonds at branch points; accumulates in individuals with type III glycogen storage disease. ... Synonym: dextrin limit. ... (05 Mar 2000) ...

limit dextrinase
Synonym for alpha-dextrin endo-1,6-alpha-glucosidase ... <enzyme> An enzyme with action similar to that of isoamylase; it cleaves 1,6-alpha-glucosidic linkages in pullalan, amylopectin, and glycogen, and in alpha-and beta-amylase limit-dextrins of amylopectin and glycogen. ... Compare: isoamylase. ... Synonym: limit dextrinase, pullulanase, R en …

limit dextrinosis
Synonym for type 3 glycogenosis ... Glycogenosis due to amylo-1,6-glucosidase deficiency, resulting in accumulation of abnormal glycogen with short outer chains in liver and muscle. ... Synonym: Cori's disease, debranching deficiency limit dextrinosis, limit dextrinosis, Forbes' disease. ... (05 Mar 2000) ...

limit of resolution
Synonym for resolving power ... 1. <optics> The resolution of an optical system defines the closest proximity of two objects that can be seen as two distinct regions of the image. This limit depends upon the Numerical Aperture of the optical system, the contrast step between objects and background and the shape of the objects. The often quoted …

limitation
1. The act of limiting; the state or condition of being limited; as, the limitation of his authority was approved by the council. 'They had no right to mistake the limitation . . . Of their own faculties, for an inherent limitation of the possible modes of existence in the universe.' (J. S. Mill) ... 2. That which limits; a restriction; a qualificat …

limited habitat
A habitat type that is rare or has been significantly reduced from its historical distribution, either locally or statewide, and is of special importance meeting the general life requirements of many wildlife species. ... (09 Oct 1997) ...

limited range audiometer
A pure-tone audiometer designed to test restricted ranges of frequency and sound pressure. ... (05 Mar 2000) ...

limiting angle
Synonym for critical angle ... The angle of incidence at which a ray of light, in passing between two media, changes from refraction to total reflection. ... Synonym: limiting angle. ... (05 Mar 2000) ...

limiting factor
Environmental factor that limits the growth or activities of an organism or that restricts the size of a population or its geographical range. ... (09 Oct 1997) ...

limiting layers of cornea
anterior limiting layer of cornea, posterior limiting layer of cornea ...

limiting membrane of retina
One of two layers of the retina: ... (05 Mar 2000) ...

limiting sulcus
The medial longitudinal groove on the inner surface of the neural tube separating the alar and basal plates. ... Synonym: sulcus limitans. ... (05 Mar 2000) ...

limiting sulcus of Reil
Synonym for circular sulcus of insula ... A semicircular fissure demarcating the insula from the opercula above, below, and behind. ... Synonym: sulcus circularis insulae, circular sulcus of Reil, limiting sulcus of Reil. ... (05 Mar 2000) ...

limiting sulcus of rhomboid fossa
A lateral groove running the whole length of the floor of the rhomboid fossa on either side of the midline, representing the remains of the sulcus demarcating the alar (dorsal) from the basal (ventral) plate of the embryonic rhombencephalon. ... Synonym: sulcus limitans fossae rhomboideae. ... (05 Mar 2000) ...

limnaemia
Synonym: chronic malaria. ... Origin: G. Limne, marsh, + haima, blood ... (05 Mar 2000) ...

limnaemic
Suffering from chronic malaria. ... (05 Mar 2000) ...

Limnatis nilotica
The horse leech; a species of land-leech of southern Europe and northern Africa which may infest the nostrils or gullet and, attaching itself to the mucous membrane, may cause haemorrhages and anaemia in horses and other animals drinking leech-infested water. ... Origin: G. Limne, pool ... (05 Mar 2000) ...

limnology
<study> The scientific study of physical, chemical, meteorological, and biological conditions in fresh waters. ... (09 Oct 1997) ...

limon
Synonym: lemon. ... Origin: L. ... (05 Mar 2000) ...

limonene hydratase
<enzyme> Converts limonene to alpha-terpineol; gene from bacillus stearothermophilus has been cloned into e. Coli ... Registry number: EC 4.2.1.- ... (26 Jun 1999) ...

limophoitas
Rarely used term for a psychosis induced by starvation. ... Origin: G. Limos, hunger, + phoitas, frenzy ... (05 Mar 2000) ...

limophthisis
Rarely used term for emaciation from lack of sufficient nourishment. ... Origin: G. Limos, hunger, + phthisis, wasting ... (05 Mar 2000) ...

limp
A lame walk with a yielding step; asymmetrical gait. ... See: claudication. ... (05 Mar 2000) ...

limpet
<zoology> ... 1. In a general sense, any hatshaped, or conical, gastropod shell. ... 2. Any one of many species of marine shellfish of the order Docoglossa, mostly found adhering to rocks, between tides. ... The common European limpets of the genus Patella (especially. P. Vulgata) are extensively used as food. The common new England species is A …

limpkin
<ornithology> Either one of two species of wading birds of the genus Aramus, intermediate between the cranes and rails. ... The limpkins are remarkable for the great length of the toes. One species (A. Giganteus) inhabits Florida and the West Indies; the other (A. Scolopaceus) is found in South America. ... Synonym: courlan, and crying bird. …

limuloidea
<zoology> An order of Merostomata, including among living animals the genus Limulus, with various allied fossil genera, mostly of the Carboniferous period. ... Synonym: Xiphosura. ... There are six pairs of leglike organs, surrounding the mouth, most of which terminate in claws; those of the first pair (probably mandibles) are the smallest; the …

limulus
<zoology> The only existing genus of Merostomata. It includes only a few species from the East Indies, and one (Limulus polyphemus) from the Atlantic coast of North America. ... Synonym: Molucca crab, king crab, horseshoe crab, and horsefoot. ... (04 Mar 1998) ...

limulus lysate test
A test for the rapid detection of Gram-negative bacterial meningitis; Gram-negative endotoxin induces gel formation of Limulus polyphemus (horseshoe crab) lysates. ... (05 Mar 2000) ...

Limulus polyphemus
<marine biology, zoology> Now renamed Xiphosura, though Limulus is still in common usage as a name. ... The king crab or horseshoe crab, found on the Atlantic coast of North America. It is more closely related to the arachnids than the crustacea and horseshoe crabs are the only surviving representatives of the subclass Xiphosura. ... Its compou …

limulus test
Sensitive method for detection of bacterial endotoxins and endotoxin-like substances that depends on the in vitro gelation of limulus amebocyte lysate (lal), prepared from the circulating blood (amebocytes) of the horseshoe crab, by the endotoxin or related compound. Used for detection of endotoxin in body fluids and parenteral pharmaceuticals. ... …

LINAC
<abbreviation> Linear accelerator. ... (05 Mar 2000) ...

linaceae
A family in the order linales. These plants have simple leaves and regular flowers housing a compound ovary. Stamens are usually fused by their filaments. ... (12 Dec 1998) ...

linalool 8-monooxygenase
<enzyme> Bacterial cytochrome p-450; catalyses the oxidation of linalool and the formation of 8-oxolinalool via the 8-alcohol ... Registry number: EC 1.14.99.28 ... Synonym: cytochrome p-450 linalool 8-methylhydroxylase, linc protein, linc gene product, cytochrome p-450(lin) ... (26 Jun 1999) ...

lincomycin
<drug> Antibiotic active against gram-positive bacteria. Acts by blocking protein synthesis by binding to the 50S subunit of the ribosome and blocking peptidyltransferase reaction. Clindamycin, a derivative of lincomycin, is used as an antimalarial drug. ... (04 Mar 1998) ...

lincture
Linctus ... An electuary or a confection; originally a medical preparation taken by licking. ... Origin: L. Lingo, pp. Linctus, to lick ... (05 Mar 2000) ...

Lind, James
<person> This Edinburgher was an apprentice to a surgeon,but entered the navy before getting his M.D., and remained for nine years. ... He left the service and received his degree from the University of Edinburgh. Lind became physician to the Haslar Naval Hospital near Portsmouth where he had 300 to 1,000 cases of scurvy under his care at all …

lindane
<chemical> An organochlorine insecticide that has been used as a pediculicide and a scabicide. It has been shown to cause cancer. ... Pharmacological action: carcinogens, insecticide, organochlorine. ... Chemical name: Cyclohexane, 1,2,3,4,5,6-hexachloro-, (1alpha,2alpha,3beta,4alpha,5alpha,6beta)- ... (12 Dec 1998) ...

Lindau
Arvid, Swedish pathologist, 1892-1958. ... See: Lindau's disease, Lindau's tumour, von Hippel-Lindau syndrome. ... (05 Mar 2000) ...

lindau-von hippel syndrome
<syndrome> The cardinal features of what is more commonly called von hippel-lindau (vhl) syndrome are benign blood-vessel tumours that most typically affect the eye and the brain. The eye tumours are termed angiomata and are in the retina. The brain tumours are termed haemangioblastoma and are in the cerebellum. Vhl is complex. There can also …

Lindau's disease
Synonym for von hippel-lindau syndrome ... <radiology> Retinocerebellar angiomatosis, phakomatosis, autosomal dominant (variable penetrance), haemangioblastoma: most frequent cause of death, cerebellar (most common), also medullary and spinal, retinal angiomatosis (45%), renal cell carcinoma: 2nd most common cause of death, pheochromocytoma (1 …

Lindau's tumour
Synonym for haemangioblastoma ... <oncology, tumour> A haemangioma, or type of tumour composed of blood vessel or angioblast cells, which occurs in the brain. ... (09 Oct 1997) ...

Lindbergh, Charles
<person> U.S. Aviator, 1902-1974. ... See: Carrel-Lindbergh pump. ... (05 Mar 2000) ...

linden
<botany> A handsome tree (Tilia Europaea), having cymes of light yellow flowers, and large cordate leaves. The tree is common in Europe. ... In America, the basswood, or Tilia Americana. ... Origin: Orig. An adj. From lind linden tree, AS. Lind; akin to D. & G. Linde, OHG. Linta, Icel, Sw, & Dan. Lind. Cf. Lime linden. ... Source: Webste …

Lindner, Karl
<person> Austrian ophthalmologist, 1883-1961. ... See: Lindner's bodies. ... (05 Mar 2000) ...

Lindner's bodies
Initial body's resembling inclusion body's found in scrapings of epithelial cells infected with trachoma. ... (05 Mar 2000) ...

Lindqvist, Johan
<person> Swedish physician, *1906. ... See: Fahraeus-Lindqvist effect. ... (05 Mar 2000) ...

line
1. The course followed by anything in motion; hence, a road or route; as, the arrow descended in a curved line; the place is remote from lines of travel. ... 2. <mathematics> That which has length, but not breadth or thickness. ... 3. <geography> A circle of latitude or of longitude, as represented on a map. The equator; usually called th …

line angle
In dentistry, the junction of two surfaces of the crown of a tooth, or of a tooth cavity (cavity line angle). ... (05 Mar 2000) ...

line for soleus muscle
Synonym for soleal line ... A ridge which extends obliquely downward and medially across the back of the tibia from the fibular articular facet; it gives origin to the soleus muscle. ... Synonym: linea musculi solei, line for soleus muscle, linea poplitea, popliteal line. ... (05 Mar 2000) ...