| ephraim | <zoology> A hunter's name for the grizzly bear. Origin: The proper name. Source: Websters Dictionary (01 Mar 1998) |
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| ephyra | <zoology> A stage in the development of discophorous medusae, when they first begin to swim about after being detached from the strobila. See Strobila. Origin: NL, fr. Gr, an old name of Corinth. Source: Websters Dictionary (01 Mar 1998) |
| epi- | Upon, following, or subsequent to. Origin: G. (05 Mar 2000) |
| epi-coprostanol | 5b-Cholestan-3a-ol. For structure of cholestane, see steroids. Synonym: epi-coprosterol. (05 Mar 2000) |
| epi-coprosterol | 5b-Cholestan-3a-ol. For structure of cholestane, see steroids. Synonym: epi-coprosterol. (05 Mar 2000) |
| epiandrosterone | 3b-hydroxy-5a-androstan-17-one;inactive isomer (3b instead of 3a) of androsterone; found in urine and in testicular and ovarian tissue. Synonym: isoandrosterone. (05 Mar 2000) |
| epibatidine | A toxic alkaloid extracted from the venom of a South American frog, Epipedobates tricolor. The venom has been used as an arrow poison by native hunters; exerts analgesia by a mechanism other than activation of opiate receptors or cyclooxygenase inhibition. (05 Mar 2000) |
| epibenthic | Living on the surface of bottom sediments in a water body. (09 Oct 1997) |
| epiblast | <biology> The outer layer of the blastoderm; the ectoderm. See Blastoderm, Delamination. Source: Websters Dictionary (01 Mar 1998) |
| epiblastic | <biology> Of or relating to, or consisting of, the epiblast. Source: Websters Dictionary (01 Mar 1998) |
| epiblema | <botany> The epidermal cells of rootlets, specially adapted to absorb liquids. Origin: NL, fr. Gr. A cover; over + to throw. Source: Websters Dictionary (01 Mar 1998) |
| epiblepharon | A congenital horizontal skin fold near the margin of the eyelid, caused by abnormal insertion of muscle fibres. In the upper lid, it simulates blepharochalasis; in the lower lid, it causes a turning inward of the lashes. Origin: epi-+ G. Blepharon, eyelid (05 Mar 2000) |
| epibole | 1. A process involved in gastrulation of telolecithal eggs in which, as a result of differential growth, some of the cells of the protoderm move over the surface toward the lips of the blastopore. 2. Growth of epithelium in an organ culture to surround the underlying mesenchymal tissue. Origin: G. Epibole, a throwing or laying on (05 Mar 2000) |
| epibolic | <biology> Growing or covering over; said of a kind of invagination. See Invagination. Origin: Gr. To throw upon, add to; upon + to throw. Source: Websters Dictionary (01 Mar 1998) |
| epiboly | <biology> Epibolic invagination. See Invagination. Origin: Cf. Gr. A throwing upon. Source: Websters Dictionary (01 Mar 1998) |