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

ectoantigen
Any toxin or other excitor of antibody formation, separate or separable from its source. ... Synonym: exoantigen. ... (05 Mar 2000) ...

ectoATPase
<enzyme> Found in human leukocytes; ecto-mg-atpase isolated from chicken ... Registry number: EC 3.6.1.- ... Synonym: ecto-adenosine triphosphatase, atpase, ecto, ecto-atpase, ecto-mg-atpase, ecto-nucleotidase ... (26 Jun 1999) ...

ectocardia
Congenital displacement of the heart. ... Synonym: exocardia. ... Origin: ecto-+ G. Kardia, heart ... (05 Mar 2000) ...

ectocervical
Pertaining to the pars vaginalis of the cervix uteri lined with stratified squamous epithelium. ... (05 Mar 2000) ...

ectocervical smear
A cytologic smear of material obtained from the ectocervix, usually by scraping; used principally for the diagnosis of late cervical cancers involving the ectocervix. ... (05 Mar 2000) ...

ectochoroidea
Synonym for suprachoroid lamina ... A layer of loose, pigmented connective tissue on the outer surface of the choroid, resembling and attached to the lamina fusca sclerae. ... Synonym: lamina suprachoroidea, ectochoroidea, suprachoroid layer, suprachoroidea. ... (05 Mar 2000) ...

ectocommensal organism
An organism that benefits from living on the outer surface of another organism without harming the other organism. A type of commensalism. ... (09 Oct 1997) ...

ectocornea
The outer layer of the cornea. ... (05 Mar 2000) ...

ectocrine
1. Relating to substances, either synthesised or arising by decomposition of organisms, that affect plant life. ... 2. A compound with ectocrine properties. ... 3. An ectohormone. ... Compare: endocrine, exocrine. ... Origin: ecto-+ G. Krino, to separate ... (05 Mar 2000) ...

ectoderm
The outer of the three germ layers of the embryo (the other two being mesoderm and endoderm). Ectoderm gives rise to epidermis and neural tissue. ... (18 Nov 1997) ...

ectodermal
Relating to the ectoderm. ... Synonym: ectodermic. ... (05 Mar 2000) ...

ectodermal cloaca
The proctodeum of the embryo. ... (05 Mar 2000) ...

ectodermal dysplasia
A hereditary condition (most often x linked) that is characterised by the abnormal development of skin, absence of sweat glands, dry eyes and abnormal development of teeth. ... Symptoms include absent teeth, peg teeth, inability to sweat, thin skin and heat intolerance. Mucous membrane involvement may result in a foul-smelling nasal discharge. The i …

ectodermatosis
Synonym for ectodermosis ... A disorder of any organ or tissue developed from the ectoderm. ... Synonym: ectodermatosis. ... (05 Mar 2000) ...

ectodermosis
A disorder of any organ or tissue developed from the ectoderm. ... Synonym: ectodermatosis. ... (05 Mar 2000) ...

ectoentad
From without inward. ... (05 Mar 2000) ...

ectoenzyme
<enzyme> An enzyme that is secreted to the outside of the cell and acts extracellularly (between cells, outside of all cells). ... Compare: endoenzyme. ... (09 Oct 1997) ...

ectoethmoid
Synonym for ethmoidal labyrinth ... A mass of air cells with thin bony walls forming part of the lateral wall of the nasal cavity; the cells are arranged in three groups, anterior, middle, and posterior, and are closed laterally by the orbital plate which forms part of the wall of the orbit. ... Synonym: labyrinthus ethmoidalis, ectethmoid, ectoethmo …

ectogenesis
Developing an embryo or embryonic tissue in vitro, or within an artificial environment. ... (09 Oct 1997) ...

ectogenic teratosis
A teratosis in which there is a deficiency of parts. ... (05 Mar 2000) ...

ectogenous
Originating from or due to influences from outside of the organism or cell. ... (09 Oct 1997) ...

ectoglobular
Not within a globular body; specifically not within a red blood cell. ... (05 Mar 2000) ...

ectohormone
A parahormonal chemical mediator of ecological significance which is secreted, largely by an organism (usually an invertebrate) into its immediate environment (air or water); it can alter the behaviour or functional activity of a second organism, often of the same species as that secreting the ectohormone. ... See: ecological ectocrine. ... (05 Mar 2 …

ectoine synthase
<enzyme> Catalyses cyclic condensation of n(gamma)-l-2,4-diaminobutyric acid to yield l-ectoine ... Registry number: EC 4.2.1.- ... Synonym: ectc gene product ... (26 Jun 1999) ...

ectomere
A blastomere (one of the cells formed during the first few divisions of the zygote) which takes part in forming the ectoderm (the outermost tissue layer of an embryo). ... (09 Oct 1997) ...

ectomerogony
The production of merozoites in the asexual reproduction of sporozoan parasites at the surface of schizonts and of blastophores, or by infolding into the schizont, as contrasted with endomerogony; ectomerogony has been observed in various species of Eimeria. ... Origin: ecto-+ G. Meros, part, + gone, generation ... (05 Mar 2000) ...

ectomesenchyme
Synonym: mesectoderm. ... Origin: ecto-+ G. Mesos, middle, + enkyma, infusion ... (05 Mar 2000) ...

ectomorph
A constitutional body type or build (biotype or somatotype) in which tissues originating from the ectoderm predominate; from a morphological standpoint, the limbs predominate over the trunk. ... Synonym: longitype. ... Origin: ecto-+ G. Morphe, form ... (05 Mar 2000) ...

ectomorphic
Relating to, or having the characteristics of, an ectomorph. ... (05 Mar 2000) ...

ectonucleotide pyrophosphohydrolase
<enzyme> Associated with porcine chondrocyte-derived vesicles; mw 127 kD; amino acid sequence has been determined ... Registry number: EC 3.6.1.- ... Synonym: ectontpphase ... (26 Jun 1999) ...

ectopagus
Conjoined twins in which the bodies are joined laterally. ... See: conjoined twins. ... Origin: ecto-+ G. Pagos, something fixed ... (05 Mar 2000) ...

ectoparasite
A parasite that lives on the outside of its host rather than within the host's body. Fleas and lice are examples. ... (09 Oct 1997) ...

ectoparasitic infestations
Infestations by parasites which live on the outside of the body of the host. ... (12 Dec 1998) ...

ectoparasiticide
An agent that is applied directly to the host to kill ectoparasites. ... Origin: ectoparasite + L. Caedo, to kill ... (05 Mar 2000) ...

ectoparasitism
Synonym for infestation ... Development on (rather than in) the body of a pathogenic agent, e.g., body lice. ... Synonym: ectoparasitism. ... (05 Mar 2000) ...

ectoperitonitis
Inflammation beginning in the deeper layer of the peritoneum which is next to the viscera or the abdominal wall. ... (05 Mar 2000) ...

ectophyte
A plant that lives and grows on the outer surface of another organism, such as moss on trees. ... (09 Oct 1997) ...

ectopia
An organ or other structure which is positioned abnormally within the body. ... (09 Oct 1997) ...

ectopia cloacae
Synonym for exstrophy of the cloaca ... A developmental anomaly in which an area of intestinal mucosa is interposed between two separate areas of the urinary bladder. ... Synonym: ectopia cloacae. ... (05 Mar 2000) ...

ectopia cordis
A type of birth defect resulting in an abnormal location of the heart. (most often, in individuals with ectopia cordis, the heart protrudes outside the chest.) ... (12 Dec 1998) ...

ectopia lentis
Congenital displacement of the lens resulting from defective zonule formation. ... (12 Dec 1998) ...

ectopia maculae
A condition in which one macula is displaced so that the two foveas are not at corresponding retinal points. ... Synonym: heterotopia maculae. ... (05 Mar 2000) ...

ectopia pupillae congenita
Displacement of the pupil present at birth. ... (05 Mar 2000) ...

ectopia renis
Displacement of the kidney. ... (05 Mar 2000) ...

ectopia testis
Synonym for testis ectopia ... Testis that is malpositioned other than along the normal path of descent. ... Synonym: ectopia testis, parorchidium. ... (05 Mar 2000) ...

ectopia vesicae
Synonym for exstrophy of the bladder ... A congenital gap in the anterior wall of the bladder and the abdominal wall in front of it, the posterior wall of the bladder being exposed. ... Synonym: ectopia vesicae. ... (05 Mar 2000) ...

ectopic
Pertaining to or characterised by ectopia. ... (18 Nov 1997) ...

ectopic ACTH syndrome
<syndrome> The association of Cushing's syndrome with a non-pituitary neoplasm, usually a lung carcinoma that produces ACTH. ... (05 Mar 2000) ...

ectopic beat
A cardiac beat originating elsewhere than at the sinoatrial node. ... (05 Mar 2000) ...

ectopic decidua
Decidual cells which may be found in the cervix, appendix, or areas other than the endometrium. ... (05 Mar 2000) ...

ectopic eyelash
The condition in which the eyelash's grow from the eyelid at a site other than the lid margin. ... Synonym: canities poliosis. ... (05 Mar 2000) ...

ectopic heartbeat
Any heartbeat that occurs out of the normal sinus rhythm of the heart. ... Examples include premature ventricular contractions and atrial premature contractions. Premature beats can be exacerbated by the use of stimulants such as caffeine, smoking, alcohol, decongestants and cocaine. ... (27 Sep 1997) ...

ectopic hormone
A hormone formed by tissue outside the normal endocrine site of production; e.g., adrenocorticotropic hormone produced by a bronchogenic carcinoma. ... Synonym: inappropriate hormone. ... (05 Mar 2000) ...

ectopic impulse
An electrical impulse from an area of the heart other than the sinus node. ... (05 Mar 2000) ...

ectopic pacemaker
Any pacemaker other than the sinus node. ... (05 Mar 2000) ...

ectopic pairing
Pairing of heterochromatin randomly, without regard to whether they are homologous. ... (09 Oct 1997) ...

ectopic pancreas
<radiology> Site: stomach (most common), small bowel, Meckel diverticulum, gallbladder, spleen prevalence: 10% at autopsy, 1:500 at operation ... (12 Dec 1998) ...

ectopic pinealoma
<tumour> An obsolete term for an undifferentiated neoplasm resembling a pinealoma, usually found near the pituitary gland; believed by some to be an undifferentiated teratoma. ... (05 Mar 2000) ...

ectopic pregnancy
A gestation elsewhere than in the uterus. Often occurring in the fallopian tube. Presents with abdominal pain, fainting, and/or vaginal bleeding. ... (27 Sep 1997) ...

ectopic pregnancy, symptoms of
Symptoms of an ectopic pregnancy can often be vague and include vaginal bleeding, abdominal or pelvic pain (usually stronger on one side),shoulder pain, weakness, or dizziness. Weakness, dizziness, and a sense of passing out upon standing can represent serious internal bleeding, requiring immediate medical attention. ... (12 Dec 1998) ...

ectopic rhythm
Any cardiac rhythm arising from a centre other than the normal pacemaker, the sinus node. ... (05 Mar 2000) ...

ectopic schistosomiasis
A clinical form of schistosomiasis that occurs outside of the normal site of parasitism (mesenteric vein or hepatic portals); may result from accidental blood-borne transport of schistosome eggs or, rarely, adult worms, to various unusual sites such as the skin, brain, or spinal cord. ... (05 Mar 2000) ...

ectopic tachycardia
A tachycardia originating in a focus other than the sinus node, e.g., atrial, A-V junctional, or ventricular tachycardia. ... (05 Mar 2000) ...

ectopic teratosis
A teratosis in which the organs or other parts are misplaced. ... (05 Mar 2000) ...

ectopic testis
A variant of undescended testis wherein testicular position is outside the usual pathway of descent. ... See: testis ectopia. ... (05 Mar 2000) ...

ectopic thyroid
<radiology> Usually connects to normal thyroid, sites: lingual thyroid, thyroglossal duct remnant, anterior mediastinum (retrosternal thyroid), btw trachea and oesophagus, struma ovarii (teratoma variant), use pertechnetate first (rather than I-131) because of lower dose ... (12 Dec 1998) ...

ectopic ureter
Opens somewhere other than the bladder wall. ... (05 Mar 2000) ...

ectoplacental
1. Outside, beyond, or surrounding the placenta; in primates, referring especially to the parts of the trophoblast not directly involved in the formation of the placenta. ... 2. In rodents, referring to the actively growing part of the trophoblast involved in the formation of the placenta. ... (05 Mar 2000) ...

ectoplacental cavity
Synonym for epamniotic cavity ... A developmental cavity that exists in some mammals and is derived by division of the proamniotic space; it is further removed from the embryo than the amniotic cavity in some mammals. ... Synonym: ectoplacental cavity. ... (05 Mar 2000) ...

ectoplasm
Granule free cytoplasm of amoeba lying immediately below the plasma membrane. ... (18 Nov 1997) ...

ectoplasmatic
Ektoplasmicektoplastic ... Relating to the ectoplasm. ... (05 Mar 2000) ...

ectoplasmic tube contraction
<cell biology> Model for amoeboid movement in which it is proposed that protrusion of a pseudopod is brought about by contraction of the sub plasmalemmal region everywhere else in the cell thus squeesing the central cytoplasm forwards. ... See: frontal zone contraction theory. ... (18 Nov 1997) ...

ectoprotein kinase
<enzyme> From outer plasma membranes; active site and substrate oriented extracellularly ... Registry number: EC 2.7.1.- ... Synonym: ecto-protein kinase, ectokinase ... (26 Jun 1999) ...

ectoretina
Synonym for pigmented layer of retina ... The outer layer of the retina, consisting of pigmented epithelium. ... Synonym: ectoretina, stratum pigmenti bulbi, stratum pigmenti retinae, tapetum nigrum, tapetum oculi. ... (05 Mar 2000) ...

ectoscopy
An obsolete method of diagnosis of disease of any of the internal organs by a study of movements of the abdominal wall or thorax caused by phonation. ... Origin: ecto-+ G. Skopeo, to examine ... (05 Mar 2000) ...

ectosymbiont
An organism which is participating in ectosymbiosis (a form of symbiosis in which the organisms involved are physically separated). ... (09 Oct 1997) ...

ectosymbiosis
Symbiosis between two organisms which are physically separated from each other. ... Compare: endosymbiosis. ... (09 Oct 1997) ...

ectotherm
An organism that does not generate its own body heat and must use an external source of heat to warm itself. A cold-blooded organism. ... (09 Oct 1997) ...

ectothermic
Able to maintain a constant body temperature with an external heat source. ... (09 Oct 1997) ...

ectothrix
A sheath of spores (conidia) on the outside of a hair. ... Origin: ecto-+ G. Thrix, hair ... (05 Mar 2000) ...

ectotoxin
Synonym for exotoxin ... <protein> Toxin released from gram-positive and gram-negative bacteria as opposed to endotoxins that form part of the cell wall. ... Examples are cholera, pertussis and diphtheria toxins. Usually specific and highly toxic. ... (18 Nov 1997) ...

ectotrophic
Describes an organism that gets its nutrients from the outside surface of its host. ... (09 Oct 1997) ...

ectotrophoblastic cavity
A developmental cavity appearing between the trophoblast and the embryonic disk ectoderm in some mammals. ... (05 Mar 2000) ...

ectro-
Congenital absence of a part. ... Origin: G. Ektrosis, miscarriage ... (05 Mar 2000) ...

ectrocheiry
Ectrochiry ... Total or partial absence of a hand. ... Origin: ectro-+ G. Cheir, hand ... (05 Mar 2000) ...

ectrodactyly
Ectrodactyliaectrodactylism ... Congenital absence of all or part of one or more fingers or toes. Known also as split-hand/foot deformity, lobster claw. There are several varieties and the pattern of inheritance, which though lasting through multiple generations, is usually somewhat irregular; may be autosomal dominant, autosomal recessive, or X-lin …

ectrogenic
Relating to ectrogeny. ... (05 Mar 2000) ...

ectrogeny
An organ or bodily structure which is flawed or missing from the body as a congenital condition. ... (09 Oct 1997) ...

ectromelia
Congenital absence or gross shortening of long bones of limb or limbs. ... (18 Nov 1997) ...

ectromelia virus
A species of orthopoxvirus infecting mice and causing a disease that involves internal organs and produces characteristic skin lesions. ... (12 Dec 1998) ...

ectromelia, infectious
A viral infection of mice, causing oedema and necrosis followed by limb loss. ... (12 Dec 1998) ...

ectromelic
Pertaining to, or characterised by, ectromelia. ... (05 Mar 2000) ...

ectropion
Eversion or turning outward of the border of the eyelid against the eyeball. Common with aging this condition can interfere with the normal tearing process in the eye. May also be seen in individuals with Down's syndrome. ... (27 Sep 1997) ...

ectropion uveae
Eversion of the pigmented posterior epithelium of the iris at the pupillary margin. ... (05 Mar 2000) ...

ectropody
Total or partial absence of a foot. ... Origin: ectro-+ G. Pous, foot ... (05 Mar 2000) ...

ectrosyndactyly
Congenital deformity marked by the absence of one or more digits and the fusion of others. ... Origin: ectro-+ G. Syn, together, + daktylos, finger ... (05 Mar 2000) ...

ectylurea
2-Ethyl-cis-crotonylurea;a mild obsolete sedative used in the treatment of nervous tension and anxiety. ... (05 Mar 2000) ...

ectype
Extreme somatotype, such as ectomorph (longitype) or endomorph (brachytype). ... Origin: G. Ek, out, + typos, stamp, model ... (05 Mar 2000) ...

ecuresis
A condition in which urinary excretion and intake of water act to produce an absolute dehydration of the body. ... See: emuresis. ... Origin: G. Ek, out, + ouresis, urination ... (05 Mar 2000) ...

eczema
<dermatology> A pruritic papulovesicular dermatitis occurring as a reaction to many endogenous and exogenous agents. ... It is characterised in the acute stage by erythema, oedema associated with a serous exudate between the cells of the epidermis (spongiosis) and an inflammatory infiltrate in the dermis, oosing and vesiculation and crusting a …