| ecdemic | <epidemiology> Denoting a disease brought into a region from without. Origin: G. Ekdemos, foreign, from home, fr. Demos, people (05 Mar 2000) |
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| ecderon | <anatomy> The external layer of the skin and mucous membranes; epithelium; ecderon. Ecteron"ic. See: Ect-. Source: Websters Dictionary (01 Mar 1998) |
| 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) |
| ecdysiasm | A morbid tendency to undress to produce sexual desire in others. Origin: fr. G. Ekdyo, to remove one's clothes (05 Mar 2000) |
| ecdysis | Origin: NL, fr. Gr. 'ekdysis a getting out, fr. 'ekdyein, to put off; 'ek out + dyein to enter. <biology> The act of shedding, or casting off, an outer cuticular layer, as in the case of serpents, lobsters, etc.; a coming out; as, the ecdysis of the pupa from its shell; exuviation. Source: Websters Dictionary (01 Mar 1998) |
| ecdysone | <endocrinology> Family of steroid hormones found in insects, crustaceans and plants. In insects, _ ecdysone stimulates moulting. The steadily maturing character of the moults is affected by steadily decreasing levels of juvenile hormone. _ ecdysone (ecdysterone) has a slightly different structure and is also found widely. Phytoecdysones are synthesised by some plants. (18 Nov 1997) |
| ecdysone dehydrogenase-isomerase | <enzyme> Converts alpha-ecdysone to less active 3-epiecdysone, using NADP Registry number: EC 1.1.1.- (26 Jun 1999) |
| ecdysteroid 26-hydroxylase | <enzyme> Converts ecdysone to 26-hydroxyecdysone in the presence of NADPH Registry number: EC 1.14.13.- (26 Jun 1999) |
| ecdysteroid UDP-glucosyltransferase | <enzyme> From the baculovirus lymantria dispar multinucleocapsid nuclear polyhedrosis virus (ldmnpv); mw 55 kD; isoelectric point 7.6; genbank u04321 Registry number: EC 2.4.1.- Synonym: egt gene product (26 Jun 1999) |
| ecdysterone | <chemical> 2 beta,3 beta,14,20,22r,25-hexahydroxy-5 beta-cholest-7-en-6-one. An insect hormone which is active during the molting stage of the insect's development. Chemical name: Cholest-7-en-6-one, 2,3,14,20,22,25-hexahydroxy-, (2beta,3beta,5beta,22R)- (12 Dec 1998) |
| ECF | <abbreviation> Extracellular fluid. (05 Mar 2000) |
| ECF-A | <abbreviation> Eosinophil chemotactic factor of anaphylaxis. (05 Mar 2000) |
| ECFV | <abbreviation> Extracellular fluid volume. (05 Mar 2000) |
| ECG | <cardiology, investigation> An recording of the electrical activity of the heart on a moving strip of paper. The electrocardiogram detects and records the electrical potential of the heart during contraction. Acronym: ECG (13 Nov 1997) |
| ECG lead | An electrocardiographic cable with connections within the electronics of the machine designated for an electrode placed at a particular point on the body surface. (05 Mar 2000) |