| egg-white syndrome | <syndrome> Dermatitis, loss of hair, and loss of muscle coordination, produced in rats by diets containing large amounts of raw egg white, the avidin of which combines with biotin producing a deficiency of the latter. Synonym: egg-white injury. (05 Mar 2000) |
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| egg yolk | The stored nutrient of the egg and the yellow portion of the egg of a bird. (12 Dec 1998) |
| ultrasonic egg recovery | Obtaining an egg for in vitro fertilization by means of an ultrasonically guided needle aspiration of ovarian follicles; may be performed transvesically or via the cul-de-sac. (05 Mar 2000) |
| low-egg-passage vaccine | See: rabies vaccine, Flury strain egg-passage. (05 Mar 2000) |
| acorn-shell | <zoology> One of the sessile cirripeds; a barnacle of the genus Balanus. Source: Websters Dictionary (01 Mar 1998) |
| argus shell | <zoology> A species of shell (Cypraea argus), beautifully variegated with spots resembling those in a peacock's tail. Source: Websters Dictionary (01 Mar 1998) |
| ark shell | <zoology> A marine bivalve shell belonging to the genus Arca and its allies. Source: Websters Dictionary (01 Mar 1998) |
| boat shell | <zoology> A marine gastropod of the genus Crepidula. The species are numerous. It is so named from its form and interior deck. A marine univalve shell of the genus Cymba. Source: Websters Dictionary (01 Mar 1998) |
| bubble shell | <zoology> A marine univalve shell of the genus Bulla and allied genera, belonging to the Tectibranchiata. Source: Websters Dictionary (01 Mar 1998) |
| maara shell | <zoology> A large, pearly, spiral, marine shell (Turbo margaritaceus), from the Pacific Islands. It is used as an ornament. Source: Websters Dictionary (01 Mar 1998) |
| valve-shell | <zoology> Any fresh water gastropod of the genus Valvata. Source: Websters Dictionary (01 Mar 1998) |
| mail-shell | <zoology> A chiton. Source: Websters Dictionary (01 Mar 1998) |
| mask shell | <zoology> Any spiral marine shell of the genus Persona, having a curiously twisted aperture. Source: Websters Dictionary (01 Mar 1998) |
| goroon shell | <zoology> A large, handsome, marine, univalve shell (Triton femorale). Source: Websters Dictionary (01 Mar 1998) |
| rice-shell | <zoology> Any one of numerous species of small white polished marine shells of the genus Olivella. Source: Websters Dictionary (01 Mar 1998) |