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

hydroxyurea
Inhibitor of DNA synthesis (but not repair). ... (18 Nov 1997) ...

hydroxyzine
<chemical> A histamine h1 receptor antagonist that is effective in the treatment of chronic urticaria, dermatitis, and histamine-mediated pruritus. Unlike its major metabolite cetirizine, it does cause drowsiness. It is also effective as an antiemetic, for relief of anxiety and tension, and as a sedative. ... Pharmacological action: anti-anxie …

hyena
Origin: L. Hyaena, Gr, orig, a sow, but usually, a Libyan wild beast, prob, the hyena, fr. Hog: cf. F. Hyene. See Sow female hog. ... <zoology> Any carnivorous mammal of the family Hyaenidae, of which three living species are known. They are large and strong, but cowardly. They feed chiefly on carrion, and are nocturnal in their habits. ... Alt …

hygieiolatry
Obselete term for an extreme observance of the principles of hygiene. ... Origin: G. Hygieia, health, + latreia, worship ... (05 Mar 2000) ...

hygieiology
The science of hygiene and sanitation, and the practice thereof. ... Origin: G. Hygieia, health, + -logia ... (05 Mar 2000) ...

hygieist
Synonym: hygienist. ... Origin: G. Hygieia, health ... (05 Mar 2000) ...

hygiene
The science of health and how to maintain it. A condition or practice which promotes good health. ... (09 Oct 1997) ...

hygienic
Pertaining to hygiene or conducive to health. ... (18 Nov 1997) ...

hygienic laboratory coefficient
Synonym for Rideal-Walker coefficient ... A figure expressing the disinfecting power of any substance; it is obtained by dividing the figure indicating the degree of dilution of the disinfectant that kills a microorganism in a given time by that indicating the degree of dilution of phenol which kills the organism in the same space of time under simi …

hygienist
One who is skilled in the science of health and its maintenance. ... Synonym: hygieist. ... (05 Mar 2000) ...

hygric
Relating to moisture. ... Origin: G. Hygros, moist ... (05 Mar 2000) ...

hygric acid
N-Methylproline, the methylbetaine of which is stachydrine. ... (05 Mar 2000) ...

hygro-
Moisture, humidity; opposite of xero-. ... Origin: G. Hygros, moist ... (05 Mar 2000) ...

hygroma
A cystic swelling containing a serous fluid, such as cystic lymphangioma, housemaid's knee, etc. ... Synonym: hydroma. ... Origin: hygro-+ G. -oma, tumour ... Hygroma axillare, hygroma of the axillary region. ... (05 Mar 2000) ...

hygroma colli cysticum
A benign cystic overgrowth of lymphatics of the neck, present at birth, which may form a large tumour-like mass. ... Synonym: cervical hygroma. ... (05 Mar 2000) ...

hygrometer
<physics> An instrument for measuring the degree of moisture of the atmosphere. Daniell's hygrometer, a form of hygrometer consisting of a bent glass tube terminating in two bulbs, the one covered with muslin, the other of black glass, and containing ether and a thermometer. Ether being poured on the muslin, the black ball, cooled by the evap …

hygromycin
An antibiotic from the bacterial species Streptomyces hygroscopicus and Streptomyces noboritoensis. It is useful against a wide range of different pathogenic microbes. ... (09 Oct 1997) ...

hygromycin b
<chemical> O-6-amino-6-deoxy-l-glycero-d-galacto-heptopyranosylidene- (1-2-3)-o-beta-d-talopyranosyl-(1-5)-2-deoxy-n(3)-methyl-d- streptamine. Antibiotic substance produced by streptomyces hygroscopicus. It is used as an anthelmintic against swine infections by large roundworms, nodular worms, and whipworms. ... Pharmacological action: anthelm …

hygromycin-B kinase
<enzyme> Phosphorylates hygromycin b, 1-n-hygromycin b and destomycin, but not hygromycin b2 at the 7''-hydroxyl group in the destomic acid ring ... Registry number: EC 2.7.1.119 ... Synonym: ATP-hygromycin-b 7''-o-phosphotransferase, hygromycin phosphotransferase, hph gene product ... (26 Jun 1999) ...

hygrophobia
<psychology> Morbid fear of dampness or moisture. ... Origin: hygro-+ G. Phobos, fear ... (05 Mar 2000) ...

hygroscopic
Pertaining to tissue or substance that is sensitive to water orwater vapor. ... Pertaining to a substance that accelerates the condensation of water vapor. ... Pertaining to water that iselectrostatically bound to the surface of dirt particles and is thereforeunavailable to plants. ... (09 Oct 1997) ...

hygroscopic expansion
Expansion due to the absorption of moisture, in dental casting, the addition of water to the surface of the casting investment during setting to increase the size of the mold. ... (05 Mar 2000) ...

hygrostomia
Synonym: sialism. ... Origin: hygro-+ G. Stoma, mouth ... (05 Mar 2000) ...

Hyl
Symbol for hydroxylysine or hydroxylysyl (5Hyl specifically refers to 5-hydroxylysine). ... (05 Mar 2000) ...

HYL kinase
<enzyme> A non-receptor haematopoietic consensus tyrosine-lacking kinase; may play an important role in signal transduction through src-family kinases in the CNS; genes hyl and csk are very similar; amino acid sequence has been determined ... Registry number: EC 2.7.1.- ... Synonym: hyl gene product ... (26 Jun 1999) ...

hyla
A lateral extension of the cerebral (or sylvian) aqueduct. ... Origin: G. Hyle, wood ... (05 Mar 2000) ...

hylase
<enzyme> Bacterial protease; do not confuse with hylase which can also mean hyaluronidase ... Registry number: EC 3.4.- ... (26 Jun 1999) ...

hylephobia
<psychology> Morbid fear of forests. ... Origin: G. Hyle, forest, + phobos, fear ... (05 Mar 2000) ...

hylic
Of or pertaining to essential matter; obsolete term denoting the pulp tissue of the embryo. ... Origin: G. Hylikos fr. Hyle, matter ... (05 Mar 2000) ...

hylic tumour
Synonym for hyloma ... <tumour> A neoplasm of pulp tissue, resulting from proliferation of elements derived from the embryonic pulp of epiblastic origin. ... Synonym: hylic tumour. ... Origin: G. Hyle, stuff, crude matter, + -oma, tumour ... (05 Mar 2000) ...

hylobates
A genus of the family hylobatidae consisting of six species. The members of this genus inhabit rain forests in southeast asia. They are arboreal and differ from other anthropoids in the great length of their arms and very slender bodies and limbs. Their major means of locomotion is by swinging from branch to branch by their arms. Hylobates means dw …

hylobatidae
A family of the suborder haplorhini comprising only one genus, hylobates (also called nomascus or symphalangus). ... (12 Dec 1998) ...

hyloma
<tumour> A neoplasm of pulp tissue, resulting from proliferation of elements derived from the embryonic pulp of epiblastic origin. ... Synonym: hylic tumour. ... Origin: G. Hyle, stuff, crude matter, + -oma, tumour ... (05 Mar 2000) ...

hymecromone
<chemical> 7-hydroxy-4-methylcoumarin. A coumarin derivative possessing properties as a spasmolytic, choleretic and light-protective agent. It is also used in analytical chemistry for the determination of nitric acid. ... Pharmacological action: cholagogues and choleretics, indicators and reagents, parasympatholytics. ... Chemical name: 2H-1-Be …

hymen
1. A fabulous deity; according to some, the son of Apollo and Urania, according to others, of Bacchus and Venus. He was the god of marriage, and presided over nuptial solemnities. 'Till Hymen brought his love-delighted hour, There dwelt no joy in Eden's rosy bower.' (Campbell) ... 2. Marriage; union as if by marriage. 'Hymen of element and race.' (E …

hymen bifenestratus
A hymen in which there are two openings separated by a wide septum. ... Compare: septate hymen. ... (05 Mar 2000) ...

hymen sculptatus
A hymen with markedly uneven and ragged edges. ... (05 Mar 2000) ...

hymen subseptus
A hymen in which the opening is partly closed by a septum. ... (05 Mar 2000) ...

hymenal
Relating to the hymen. ... (05 Mar 2000) ...

hymenal caruncula
One of the numerous tabs or projections surrounding the orifice of the vagina. ... Synonym: caruncula hymenalis, caruncula myrtiformis. ... (05 Mar 2000) ...

hymenectomy
<procedure> Excision of the hymen. ... Origin: G. Hymen, membrane, + ektome, excision ... (05 Mar 2000) ...

hymenitis
Inflammation of the hymen. ... (05 Mar 2000) ...

hymenoid
Synonym: membranous. ... 2. Resembling the hymen. ... (05 Mar 2000) ...

hymenolepiasis
Infection with tapeworms of the genus hymenolepis. ... (12 Dec 1998) ...

hymenolepidid
Common name for tapeworms of the family Hymenolepididae. ... (05 Mar 2000) ...

Hymenolepididae
A family of tapeworms (order Cyclophyllidea) that includes the medically important genus Hymenolepis. ... Origin: G. Hymen, membrane, + lepis, rind ... (05 Mar 2000) ...

hymenolepis
A genus of small tapeworms of birds and mammals. ... (12 Dec 1998) ...

Hymenolepis diminuta
A tapeworm species of rats and mice, rarely found in man; its cysticercoid larvae are harbored by beetles, fleas, caterpillars, and other insects. ... (05 Mar 2000) ...

Hymenolepis lanceolata
A tapeworm of aquatic birds, rarely found in humans. ... (05 Mar 2000) ...

Hymenolepis nana
The dwarf or dwarf mouse tapeworm; a small tapeworm of man, sometimes found in great numbers in the intestine; the cysticercoid can develop by two pathways: in the final host, with the egg from one human directly infective to another human host, in which both larval and adult stages occur, or through two hosts, an insect (or crustacean) intermediat …

Hymenolepis nana fraterna
A race, strain, or subspecies of Hymenolepis nana adapted to mice, although infectivity to humans may remain; the human form, Hymenolepis nana, presumably is derived from the rodent strain. ... (05 Mar 2000) ...

hymenology
The branch of anatomy and physiology concerned with the membranes of the body. ... Origin: G. Hymen, membrane, + logos, study ... (05 Mar 2000) ...

hymenoptera
<zoology> An extensive order of insects, including the bees, ants, ichneumons, sawflies, etc. ... They have four membranous wings, with few reticulations, and usually with a thickened, dark spot on the front edge of the anterior wings. In most of the species, the tongue, or lingua, is converted into an organ for sucking honey, or other liquid …

hymenorrhaphy
An obsolete term for suture of the hymen in order to close the vagina. ... Origin: G. Hymen, membrane, + raphe, a suture ... (05 Mar 2000) ...

hymenostomatida
An order of ciliate protozoa. Characteristics include a ventral oral area and a well-defined buccal cavity. It comprises three suborders: tetrahymenina, ophryoglenina, and peniculina. ... (12 Dec 1998) ...

hymenotomy
<procedure> Surgical division of a hymen. ... Origin: G. Hymen, membrane, + tome, incision ... (05 Mar 2000) ...

hymnology
1. The hymns or sacred lyrics composed by authors of a particular country or period; as, the hymnology of the eighteenth century; also, the collective body of hymns used by any particular church or religious body; as, the Anglican hymnology. ... 2. A knowledge of hymns; a treatise on hymns. ... Origin: Gr. Hymn: cf. F. Hymnologie. ... Source: Websters …

Hynes
Wilfred, British plastic surgeon, *1903. ... See: Anderson-Hynes pyeloplasty, Hynes pharyngoplasty. ... (05 Mar 2000) ...

Hynes pharyngoplasty
An operation to narrow the pharynx in order to improve speech by cross-rotating two superiorly based flaps to produce a horizontal shelf above Passavant's ridge. ... (05 Mar 2000) ...

hyo-
<anatomy, prefix> A prefix used in anatomy, and generally denoting connection with the hyoid bone or arch; as, hyoglossal, hyomandibular, hyomental, etc. ... (29 Oct 1998) ...

hyobranchial cleft
The cleft caudal to the hyoid arch of the embryo. ... (05 Mar 2000) ...

hyoepiglottic
Relating to the hyoid bone and the epiglottis; denoting the elastic hyoepiglottic ligament connecting the two structures. ... Synonym: hyoepiglottidean. ... (05 Mar 2000) ...

hyoepiglottic ligament
<anatomy> A short elastic band that unites the epiglottis to the upper border of the hyoid bone. ... Synonym: ligamentum hyoepiglotticum. ... (05 Mar 2000) ...

hyoepiglottidean
Synonym for hyoepiglottic ... Relating to the hyoid bone and the epiglottis; denoting the elastic hyoepiglottic ligament connecting the two structures. ... Synonym: hyoepiglottidean. ... (05 Mar 2000) ...

hyoganoidei
<marine biology> A division of ganoid fishes, including the gar pikes and bowfins. ... Origin: NL. ... (05 Mar 1998) ...

hyoglossal membrane
Posterior widening of the lingual septum connecting the root of the tongue to the hyoid bone; the inferior fibres of the genioglossus are attached to it and by this means to the upper anterior body of the hyoid bone near the midline. ... (05 Mar 2000) ...

hyoglossal muscle
Synonym for hyoglossus muscle ... <anatomy, muscle> A flat muscle on either side of the tongue, connecting it with the hyoid bone. ... Origin, body and greater horn of hyoid bone; insertion, side of the tongue; action, retracts and pulls down side of tongue; nerve supply, motor by hypoglossal, sensory by lingual. ... Synonym: musculus hyoglossus …

hyoglossus muscle
<anatomy, muscle> A flat muscle on either side of the tongue, connecting it with the hyoid bone. ... Origin, body and greater horn of hyoid bone; insertion, side of the tongue; action, retracts and pulls down side of tongue; nerve supply, motor by hypoglossal, sensory by lingual. ... Synonym: musculus hyoglossus, hyoglossal muscle, hyoglossus.< …

hyoid
1. Having the form of an arch, or of the Greek letter upsilon. ... 2. <anatomy> Of or pertaining to the bony or cartilaginous arch which supports the tongue. Sometimes applied to the tongue itself. ... 3. <anatomy> Hyoid arch, the bone in the base of the tongue, the middle part of the hyoid arch. ... Origin: Gr. Fr. The letter + form: cf. …

hyoid apparatus
<veterinary> A veterinary anatomy term for hyoid bones, a modified portion of the ancestral branchial skeleton consisting of an articulated chain of bones extending from the mastoid region of the skull on each side to the base of the tongue. ... In humans, it is reduced to a single bone, os hyoideum; in a typical mammal (the dog), it consists …

hyoid arch
<anatomy> The second visceral, or branchial, a; the second postoral arch in the branchial arch series. ... (05 Mar 2000) ...

hyoid bone
<anatomy> A U-shaped bone lying between the mandible and the larynx, suspended from the styloid processes by slender stylohyoid ligaments. ... See: hyoid apparatus. ... Synonym: os hyoideum, lingual bone, tongue bone. ... (05 Mar 2000) ...

hyomandibular cleft
<anatomy> The cleft between the hyoid and mandibular arches of the embryo; the external auditory meatus is developed from its dorsal portion. ... Synonym: first visceral cleft. ... (05 Mar 2000) ...

hyomental
<anatomy> Between the hyoid bone and the lower jaw, pertaining to them; suprahyoid; submaxillary; as, the hyomental region of the front of the neck. ... Origin: Hyo- + mental of the chin. ... (01 Mar 1998) ...

hyopastron
<zoology> The second lateral plate in the plastron of turtles. ... Synonym: hyosternum. ... Origin: Hyo- + plastron. ... (01 Mar 1998) ...

hyopharyngeus
Synonym for middle constrictor muscle of pharynx ... Origin, stylohyoid ligament, lesser cornu of the hyoid bone (chondropharyngeal part) and greater cornu of the hyoid bone (ceratopharyngeal part); insertion, pharyngeal raphe in the posterior wall of the pharynx; action, narrows pharynx in the act of swallowing; nerve supply, pharyngeal plexus. ... …

hyoscine hydrobromide
Synonym for scopolamine hydrobromide ... Anticholinergic action is similar to that of atropine. ... Synonym: hyoscine hydrobromide. ... (05 Mar 2000) ...

hyoscyamine
<chemical> A chemical with the formula C17H23O3N which is a white powder at room temperature and which melts at 108.5 degrees C. ... It comes from plants such as henbane and belladona. Hyoscyamine is used medically as the levorotatory isomer of racemic atropine and as an anticholinergic alkaloid. ... (08 Mar 2000) ...

hyoscyamine (6S)-dioxygenase
<enzyme> A 2-oxoglutarate-dependent dioxygenase that catalyses hydroxylation of l-hyoscyamine to 6beta-hydroxyhyoscyamine in biosynthetic pathway to scopolamine; requires fe2+ ... Registry number: EC 1.14.11.11 ... Synonym: hyoscyamine 6beta-hydroxylase, hyoscyamine 6 beta-hydroxylase ... (26 Jun 1999) ...

hyoscyamine sulfate
<drug> An antispasmodic, hypnotic, and sedative, also used in parkinsonism to relieve tremor, rigidity, and excessive salivation. ... (05 Mar 2000) ...

hyosternal
1. <anatomy> Between the hyoid bone and the sternum, or pertaining to them; infrahyoid; as, the hyosternal region of the neck. ... 2. <zoology> Pertaining to the hyosternum of turtles. ... (06 Mar 1998) ...

Hyostrongylus rubidus
The red stomach worm of swine; a small reddish trichostrongyle nematode that burrows into the mucosa of the fundus of the pig stomach and sucks blood; moderate numbers appear to cause little damage unless the animal's resistance is lowered by other factors. ... Origin: G. Hys, gen. Hyos, a hog, + strongylos, round ... (05 Mar 2000) ...

hyostylic
<anatomy, marine biology> Having the mandible suspended by the hyomandibular, or upper part of the hyoid arch, as in fishes, instead of directly articulated with the skull as in mammals; said of the skull. ... Origin: Gr. A pillar. ... (06 Mar 1998) ...

hyothyroid
See: thyrohyoid membrane. ... (05 Mar 2000) ...

Hyp
<abbreviation> Hypoxanthine; hydroxyproline (3Hyp and 4Hyp specifically refer to 3-hydroxyproline and 4-hydroxyproline, respectively). ... (05 Mar 2000) ...

hyp-
<prefix> Variation of the prefix hypo-, often used before a vowel. ... Compare: sub-. ... (05 Mar 2000) ...

hypacusia
Synonym for hypacusis ... Hearing impairment of a conductive or neurosensory nature. ... Synonym: hypacusia, hypoacusis. ... Origin: hypo-+ G. Akousis, hearing ... (05 Mar 2000) ...

hypacusis
Hearing impairment of a conductive or neurosensory nature. ... Synonym: hypacusia, hypoacusis. ... Origin: hypo-+ G. Akousis, hearing ... (05 Mar 2000) ...

hypalbuminaemia
Synonym: hypoalbuminaemia. ... Origin: G. Hypo, under, + albuminaemia ... (05 Mar 2000) ...

hypalgesia
Decreased sensibility to pain. ... Synonym: hypalgia, hypoalgesia. ... Origin: G. Hypo, under, + algesis, sense of pain ... (05 Mar 2000) ...

hypalgesic
Hypalgetic ... Relating to hypalgesia; having diminished sensitiveness to pain. ... (05 Mar 2000) ...

hypalgia
Synonym: hypalgesia. ... Origin: G. Hypo, under, + algos, pain ... (05 Mar 2000) ...

hypamnios
Presence of an abnormally small amount of amniotic fluid. ... Origin: G. Hypo, under, + amnion ... (05 Mar 2000) ...

hypanakinesia
Diminution in the normal gastric or intestinal movements. ... Origin: G. Hypo, under, + anakinesis, a to-and-fro movement ... (05 Mar 2000) ...

hypanthium
<plant biology> A cup or tube bearing floral parts above the base, and often above the top, of the ovary of a flower. ... Compare: calyx tube. ... (06 Mar 1998) ...

hypapophysis
<anatomy> A process, or other element, of a vertebra developed from the ventral side of the centrum, as haemal spines, and chevron bones. ... See: apophysis. ... (06 Mar 1998) ...

Hypaque enema
Enema with water-soluble radiographic contrast material, whether diatrizoate or other. ... (05 Mar 2000) ...

hypaque swallow
gastrografin swallow ...

hyparterial
<anatomy> Situated below an artery; applied especially. To the branches of the bronchi given off below the point where the pulmonary artery crosses the bronchus. ... (06 Mar 1998) ...

hyparterial bronchi
Those bronchi which pass below the pulmonary arteries, i.e., right middle and inferior lobar bronchi and left superior and inferior lobar bronchi. ... (05 Mar 2000) ...