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


peritoneoplasty
Loosening adhesions and covering the raw surfaces with peritoneum to prevent reformation. ... Origin: peritoneum + G. Plastos, formed ... (05 Mar 2000) ...

peritoneoscope
Synonym: laparoscope. ... Origin: peritoneum + G. Skopeo, to view ... (05 Mar 2000) ...

peritoneoscopy
Examination of the contents of the peritoneum with a peritoneoscope passed through the abdominal wall. ... See: laparoscopy. ... Synonym: abdominoscopy, celioscopy, ventroscopy. ... (05 Mar 2000) ...

peritoneotomy
<procedure> Incision of the peritoneum. ... Origin: peritoneum + G. Tome, incision ... (05 Mar 2000) ...

peritoneovenous shunt
An operation for the continuous emptying of ascitic fluid into the venous system. Fluid removal is based on intraperitoneal and intrathoracic superior vena cava pressure differentials and is performed via a pressure-sensitive one-way valve connected to a tube traversing the subcutaneous tissue of the chest wall to the neck where it enters the inter …

peritoneum
<anatomy> The smooth serous membrane which lines the cavity of the abdomen, or the whole body cavity when there is no diaphragm, and, turning back, surrounds the viscera, forming a closed, or nearly closed, sac. ... Alternative forms: peritonaeum. ... Origin: L. Peritoneum, peritonaeum, Gr, fr. To stretch all around or over; around + to stretch …

peritoneum parietale
parietal peritoneum ...

peritoneum viscerale
Synonym for visceral peritoneum ... The layer of peritoneum investing the abdominal organs. ... Synonym: peritoneum viscerale. ... (05 Mar 2000) ...

peritonism
A rarely used term for:1. A symptom complex marked by vomiting, pain, and shock associated with inflammation of any of the abdominal viscera in which the peritoneum is involved. ... 2. A neurosis in which the symptoms simulate those of peritonitis. ... Synonym: pseudoperitonitis. ... (05 Mar 2000) ...

peritonitis
<pathology> Inflammation of the peritoneum, a condition marked by exudations in the peritoneum of serum, fibrin, cells and pus. It is attended by abdominal pain and tenderness, constipation, vomiting and moderate fever. ... (18 Nov 1997) ...

peritonitis deformans
A chronic peritonitis in which thickening of the membrane and contracting adhesions cause shortening of the mesentery and kinking and retraction of the intestines. ... (05 Mar 2000) ...

peritonitis encapsulans
A localised fibrous or adhesive peritonitis remaining after a generalised peritonitis has nearly disappeared; it is marked by pain, constipation, and a palpable tumour. ... (05 Mar 2000) ...

peritonsillar
Around a tonsil or the tonsils. ... (05 Mar 2000) ...

peritonsillar abscess
An abscess in the peritonsillar tissue extending into the tonsil capsule, resulting from suppuration of the tonsil. ... (12 Dec 1998) ...

peritonsillitis
Inflammation of the connective tissue above and behind the tonsil. ... (05 Mar 2000) ...

peritracheal glands
Synonym for ecdysial gland ... <entomology> Insect structures that originate from the ectoderm of the ventrocaudal part of the head and serve as a source of ecdysone. ... Synonym: peritracheal glands, prothoracic glands, thoracic glands, ventral glands. ... (05 Mar 2000) ...

peritrichal
Synonym for peritrichous ... 1. Relating to cilia or other appendicular organs projecting from the periphery of a cell. ... 2. Having flagella uniformly distributed over a cell; used especially with reference to bacteria. ... Synonym: peritrichal, peritrichate, peritrichic. ... Origin: peri-+ G. Thrix, hair ... (05 Mar 2000) ...

Peritrichida
An order of ciliates (subclass Peritrichia, phylum Ciliophora) characterised by a cylindrical shape with the cilia usually limited to the zone surrounding the mouth opening; includes the suborder Mobilina, whose members are all ecto-or endoparasites of aquatic invertebrates and vertebrates, of which the genus Trichodina includes economically import …

peritrichous
1. Relating to cilia or other appendicular organs projecting from the periphery of a cell. ... 2. Having flagella uniformly distributed over a cell; used especially with reference to bacteria. ... Synonym: peritrichal, peritrichate, peritrichic. ... Origin: peri-+ G. Thrix, hair ... (05 Mar 2000) ...

peritrichous flagellation
Having flagella attached to many places on the cell surface. ... (09 Oct 1997) ...

peritrochanteric
Around a trochanter. ... (05 Mar 2000) ...

peritubular contractile cells
Synonym for myoid cells ... Flattened smooth muscle-like cell's of mesodermal origin that lie just outside the basal lamina of the seminiferous tubule. ... Synonym: peritubular contractile cells. ... (05 Mar 2000) ...

peritubular dentin
An electron-dense layer of dentin observed adjacent to the odontoblastic process. ... (05 Mar 2000) ...

peritubular zone
The dentinal matrix surrounding the odontoblastic process; it is more highly calcified and contains finer collagen fibres than does the rest of the dentinal matrix. ... (05 Mar 2000) ...

perityphlic
Synonym: pericaecal. ... Origin: peri-+ G. Typhlon, caecum ... (05 Mar 2000) ...

perityphlitis actinomycotica
Abdominal infection, predominantly around the caecum, with Actinomycetes, usually Actinomyces israelii. ... (05 Mar 2000) ...

periumbilical
Around or near the umbilicus. ... Synonym: periomphalic. ... (05 Mar 2000) ...

periungual
Surrounding a nail; involving the nail folds. ... Origin: peri-+ L. Unguis, nail ... (05 Mar 2000) ...

periungual fibroma
Multiple smooth firm nodules formed at the nail folds, often over 10 mm in length, which appear at or after puberty in some patients with tuberous sclerosis. ... Synonym: Koenen's tumour. ... (05 Mar 2000) ...

periureteral abscess
An abscess surrounding the ureter. ... (05 Mar 2000) ...

periureteric
Surrounding one or both ureters. ... (05 Mar 2000) ...

periureteritis
Inflammation of the tissues about a ureter. ... Origin: peri-+ ureter + G. -itis, inflammation ... (05 Mar 2000) ...

periureteritis plastica
Synonym for retroperitoneal fibrosis ... <radiology> Ureters tapered or obstructed, most severe at L4-5, ureters deviated medially, Treatment: symptomatic; steroids have ? long-term benefit Differential diagnosis: malignancy, lymphoma (especially Hodgkin's), metastasis from colon and breast, retroperitoneal sarcoma, drugs, methysergide (Sanser …

periurethral
Surrounding the urethra. ... (05 Mar 2000) ...

periurethral abscess
An abscess involving the tissues around the urethra. ... (05 Mar 2000) ...

periurethritis
Inflammation of the tissues about the urethra. ... Origin: peri-+ urethra + G. -itis, inflammation ... (05 Mar 2000) ...

periuvular
Around the uvula. ... (05 Mar 2000) ...

perivaginitis
Inflammation of the connective tissue around the vagina. ... Synonym: pericolpitis. ... (05 Mar 2000) ...

perivascular
Situated around a vessel. ... (18 Nov 1997) ...

perivascular cuffs
See: cuffing. ... Rotator cuff of shoulder, the upper half of the capsule of the shoulder joint reinforced by the tendons of insertion of the supraspinatus, infraspinatus, teres minor, and subscapularis muscles. ... Synonym: musculotendinous cuff. ... (05 Mar 2000) ...

perivascular fibrous capsule
Synonym for fibrous capsule of liver ... A layer of connective tissue ensheathing the hepatic artery, portal vein, and bile ducts as these ramify within the liver. ... Synonym: capsula fibrosa perivascularis, perivascular fibrous capsule. ... Connective tissue capsule surrounding the outer surface of the liver, but continuous with septae of some anima …

perivasculitis
Synonym for periangitis ... <pathology> Inflammation of the adventitia of a blood vessel or of the tissues surrounding it or a lymphatic vessel. ... See: periarteritis, periphlebitis, perilymphangitis. ... Synonym: perivasculitis. ... Origin: peri-+ G. Angeion, a vessel, + -itis, inflammation ... (05 Mar 2000) ...

perivenous
Surrounding a vein. ... (05 Mar 2000) ...

periventricular fibres
A heterogeneous system of thin nerve fibres in the periventricular gray matter of the hypothalamus; the dorsal longitudinal fasciculus is a caudal continuation of the system. ... Synonym: fibrae periventriculares. ... (05 Mar 2000) ...

perivesical
Synonym: pericystic. ... Origin: peri-+ L. Vesica, bladder ... (05 Mar 2000) ...

perivisceral cavity
The space between the ectoderm and endoderm in the gastrula. ... Synonym: primitive perivisceral cavity. ... (05 Mar 2000) ...

perivisceritis
Inflammation surrounding any viscus or viscera. ... Origin: peri-+ L. Viscera, internal organs, + G. -itis, inflammation ... (05 Mar 2000) ...

perivitelline space
The space between the vitelline membrane and the zona pellucida, appearing in an ovum immediately following fertilization. ... (05 Mar 2000) ...

periwinkle
<zoology> Any small marine gastropod shell of the genus Littorina. The common European species (Littorina littorea), in Europe extensively used as food, has recently become naturalized abundantly on the American coast. See Littorina. ... In America the name is often applied to several large univalves, as Fulgur carica, and F. Canaliculata. ... …

Perkins
Elisha, U.S. Physician, 1741-1799. ... See: perkinism. ... (05 Mar 2000) ...

perleche
Synonym: angular cheilitis. ... Origin: Fr. Per, intensive, + lecher, to lick ... (05 Mar 2000) ...

Perlia
Richard, 19th century German ophthalmologist. ... See: Perlia's nucleus, convergence nucleus of Perlia. ... (05 Mar 2000) ...

Perlia's nucleus
A small cell group located between the somatic cell columns of the oculomotor nuclei. Since it is placed between the groups of motor neurons innervating, respectively, the left and right medial rectus muscles, the nucleus is considered to possibly represent an integrating mechanism for ocular convergence. ... Synonym: convergence nucleus of Perlia, …

perlingual
Through or by way of the tongue, denoting a method of medication. ... Origin: L. Per, through, + lingua, tongue ... (05 Mar 2000) ...

Perls
Max, German pathologist, 1843-1881. ... See: Perls' Prussian blue stain, Perls' test. ... (05 Mar 2000) ...

Perls' Prussian blue stain
<technique> A stain for ferric iron as in haemosiderins, using potassium ferrocyanide in acetic acid or dilute hydrochloric acid followed by a red counterstain such as safranin O or neutral red; various haemosiderins and most mineral irons give a blue-green reaction, while nuclei stain red. ... (05 Mar 2000) ...

Perls' test
A test for haemosiderin, utilizing Perls' Prussian blue stain. ... (05 Mar 2000) ...

permanent
Continuing or enduring (as the same state, status, place) without fundamental or marked change: not subject to fluctuation or alteration: fixed or intended to be fixed: lasting, stable. ... (18 Nov 1997) ...

permanent callus
Synonym for definitive callus ... The callus which has become converted into osseous tissue. ... Synonym: permanent callus. ... (05 Mar 2000) ...

permanent cartilage
Cartilage that is not replaced by bone. ... (05 Mar 2000) ...

permanent dominant idea
Synonym for fixed idea ... An exaggerated notion, belief, or delusion that persists, despite evidence to the contrary, and controls the mind, the obstinate conviction of a psychotic person regarding the correctness of his delusion. ... Synonym: idee fixe, overvalued idea, permanent dominant idea. ... (05 Mar 2000) ...

permanent pedicle flap
A pedicle flap in which the pedicle is not severed at the time of transfer, so that it continues to supply blood from the donor site to the recipient area. ... (05 Mar 2000) ...

permanent restoration
A definitive restoration, in contradistinction to a temporary or provisional restoration. ... (05 Mar 2000) ...

permanent section
A technique in which a thin slice of biopsy tissue is mounted on a slide to be examined under a microscope by a pathologist in order to establish a diagnosis. ... (09 Oct 1997) ...

permanent stricture
Synonym for organic stricture ... A stricture due to the presence of cicatricial or other new tissue, not spasmodic. ... Synonym: permanent stricture. ... (05 Mar 2000) ...

permanent tooth
One of the 32 teeth belonging to the second or permanent dentition; eruption of the permanent teeth begins from the fifth to the seventh year, and is not completed until the seventeenth to the twenty-third year, when the last of the wisdom teeth appears. ... Synonym: dens permanens, dens succedaneus, second tooth, secondary dentition, succedaneous d …

permanently flooded
A water regime condition where standing water covers the land surface throughout the year (but may be absent during extreme droughts). ... (09 Oct 1997) ...

permeability
The property or state of being permeable. ... (18 Nov 1997) ...

permeability coefficient
A coefficient associated with simple diffusion through a membrane that is proportional to the partition coefficient and the diffusion coefficient and inversely proportional to membrane thickness. ... (05 Mar 2000) ...

permeability constant
A measure of the ease with which an ion can cross a unit area of membrane driven by a 1.0 m difference in concentration; usually expressed in centimeters per second. ... Compare: permeability coefficient. ... (05 Mar 2000) ...

permeability theory of narcosis
That the permeability of the cell membrane is decreased by narcotic concentrations of aliphatic and other central nervous system depressants. ... (05 Mar 2000) ...

permeability vitamin
Synonym for vitamin P ... A mixture of bioflavonoids extracted from plants (especially citrus fruits). It reduces the permeability and fragility of capillaries and is useful in the treatment of certain cases of purpura that are resistant to vitamin C therapy. ... See: hesperidin, quercetin, rutin. ... Synonym: capillary permeability factor, citrin, pe …

permeant
Able to pass through a particular semipermeable membrane. ... Origin: L. Permeabilis (see permeate) ... (05 Mar 2000) ...

permease
<enzyme> General term for a membrane protein that increases the permeability of the plasma membrane to a particular molecule, by a process not requiring metabolic energy. ... See: facilitated diffusion. ... (18 Nov 1997) ...

permeate
1. To pass through a membrane or other structure. ... 2. That which can so pass. ... Origin: L. Permeo, to pass through ... (05 Mar 2000) ...

permeation
The process of spreading through or penetrating, as the extension of a malignant neoplasm by proliferation of the cells continuously along the blood vessels or lymphatics. ... Origin: L. Per-meo, pp. -meatus, to pass through ... (05 Mar 2000) ...

permethrinase
<enzyme> Stable protein form bacillus cereus; hydrolyzes second- and third generation pyrethroids, thereby generating non-insecticidal products; mw 61 kD ... Registry number: EC 3.1.1.- ... (26 Jun 1999) ...

permian
1. <geology> Belonging or relating to the period, and also to the formation, next following the Carboniferous, and regarded as closing the Carboniferous age and Paleozoic era. ... 2. <ethnology> A tribe belonging to the Finnic race, and inhabiting a portion of Russia. ... Origin: From the ancient kingdom of Permia, where the Permian forma …

permissible exposure limit
An occupational health standard to safeguard workers against dangerous contaminants in the workplace. ... (05 Mar 2000) ...

permissive cell
<cell biology> Cells of a type or species in which a particular virus can complete its replication cycle. ... (18 Nov 1997) ...

permissive temperature
<molecular biology> Of a temperature sensitive mutation, a temperature at which the mutated gene product behaves normally and so the cell or organism survives as if wild type. C.f. The restrictive temperature, at which the gene product takes on a mutant phenotype. ... (18 Nov 1997) ...

permissiveness
The attitude that grants freedom of expression and activity to another individual, but not necessarily with sanction or approval. ... (12 Dec 1998) ...

permutation
1. The act of permuting; exchange of the thing for another; mutual transference; interchange. 'The violent convulsions and permutations that have been made in property.' (Burke) ... 2. <mathematics> The arrangement of any determinate number of things, as units, objects, letters, etc, in all possible orders, one after the other; called also alt …

perna disease
Halogen or chloric acne occurring in workers in perchlornaphthalin. ... Origin: perchlornaphthalin ... (05 Mar 2000) ...

perniciosiform
Rarely used term meaning apparently pernicious, denoting a condition or disease that appears to be pernicious or malignant. ... (05 Mar 2000) ...

pernicious
Tending to a fatal issue. ... Origin: L. Perniciosus ... (18 Nov 1997) ...

pernicious anaemia type rubriblast
Synonym for promegaloblast ... The earliest of four maturation stages of the megaloblast. ... See: erythroblast. ... Synonym: pernicious anaemia type rubriblast. ... (05 Mar 2000) ...

pernicious malaria
Synonym for falciparum malaria ... <infectious disease> A tropical parasitic disease caused by one of the genus Plasmodium and carried by infected mosquitoes of the genus Anopheles. This parasite uses red blood cells to complete its reproductive cycle. ... Common symptoms of an attack include high fever, chills, sweats and body aches. ... (27 Se …

pernicious vomiting
Uncontrollable vomiting. ... (05 Mar 2000) ...

perniosis
Synonym: chilblain. ... Origin: L. Pernio, chilblain, + G. -osis, condition ... (05 Mar 2000) ...

pero-
Maimed, malformed. ... Origin: G. Peros ... (05 Mar 2000) ...

perobrachius
An individual with a congenital malformation of one or both hands and forearms. ... Origin: pero-+ G. Brachion, arm ... (05 Mar 2000) ...

perocephalus
An individual with congenitally defective face and head. ... Origin: pero-+ G. Kephale, head ... (05 Mar 2000) ...

perochirus
An individual with a congenital malformation of one or both hands. ... Origin: pero-+ G. Cheir, hand ... (05 Mar 2000) ...

perodactyly
Perodactylia ... An individual with congenitally malformed fingers or toes. ... Origin: pero-+ G. Daktylos, finger or toe ... (05 Mar 2000) ...

perogen
A preparation of sodium perborate that, when mixed with the accompanying catalyzer, liberates 10% of the oxygen in the salt. ... (05 Mar 2000) ...

peromelia
Peromely ... Severe congenital malformations of extremities, including absence of hand or foot. ... Origin: pero-+ G. Melos, limb ... (05 Mar 2000) ...

peromyscus
A genus of the subfamily hesperomyinae consisting of 49 species. Two of these are widely used in medical research. They are p. Leucopus, or the white-footed mouse, and p. Maniculatus, or the deer mouse. ... (12 Dec 1998) ...

perone
Synonym: fibula. ... Origin: G. Perone, brooch, the small bone of the arm or leg, the fibula, fr. Peiro, to pierce ... (05 Mar 2000) ...

peroneal anastomotic ramus
Synonym for peroneal communicating branch ... The peroneal (fibular) communicating branch of the common peroneal (fibular) nerve; it arises from the common peroneal nerve in the popliteal space and passes over the lateral head of the gastrocnemius to the middle third of the leg, where it unites with the medial sural cutaneous nerve to form the sural …