Defn: The median plate of the plastron of turtles; — called also entosternum.

ENTOPROCTA
En`to*proc"ta, n. pl. Etym: [NL., fr. Gr. (Zoöl.)

Defn: A group of Bryozoa in which the anus is within the circle of tentacles. See Pedicellina.

ENTOPTIC
Ent*op"tic, a. Etym: [Ent- + optic.] (Physiol.)

Defn: Relating to objects situated within the eye; esp., relating to the perception of objects in one's own eye.

ENTORGANISM
Ent*or"gan*ism, n. Etym: [Ent- + organism.] (Biol.)

Defn: An internal parasitic organism.

ENTORTILATION En*tor`ti*la"tion, n. Etym: [F. entortiller to twist; pref. en- (L. in) + tortiller to twist.]

Defn: A turning into a circle; round figures. [Obs.] Donne.

ENTOSTERNUM
En`to*ster"num, n.; pl. Entosterna. Etym: [NL. See Ento-, and
Sternum.] (Anat.)