Ectozo´ön, n. External parasite, as a louse; same as epizoön. Opposed to entozoön.
Eden´tate, Eden´tulous, a. Toothless, as nearly all birds are.
Edge of Wing. (95.) See Campterium.
Ef´ferent, a. Conveying outward or away; opposed to afferent.
El´ement, n. A simple ultimate constituent part of a compound organ. The centrum is an element of a vertebra.
El´evated, a. Said of the hind toe when inserted above the level of the others.
Elon´gate, a. Lengthened beyond usual ratio.
Emar´ginate, a. Notched at the end; slightly forked, especially in case of a tail so shaped; also notched, or abruptly narrowed along the edge, in its continuity, as the border of many a wing-quill.
Embonpoint, n. State of perfect health, as indicated by condition of fatness not amounting to corpulence or obesity.
Em´bryo, n. Fecundated germ or rudiment of an animal; said of a bird until hatched, and therefore corresponding to fœtus in mammalogy.