Ectodermal to Edict
Ectodermal
(Ec`to*der"mal Ec`to*der"mic) a. (Biol.) Of or relating to the ectoderm.
Ectolecithal
(Ec`to*lec"i*thal) a. [Ecto- + Gr. the yolk of an egg.] (Biol.) Having the food yolk, at the
commencement of segmentation, in a peripheral position, and the cleavage process confined to the
center of the egg; as, ectolecithal ova.
Ectomere
(Ec"to*mere) n. [Ecto- + - mere.] (Biol.) The more transparent cells, which finally become
external, in many segmenting ova, as those of mammals.
Ectoparasite
(Ec`to*par"a*site) n. (Zoöl.) Any parasite which lives on the exterior of animals; — opposed
to endoparasite. — Ec`to*par`a*sit"ic a.
Ectopia
(||Ec*to"pi*a) n. [NL., fr. Gr. 'ek out + place.] (Med.) A morbid displacement of parts, especially
such as is congenial; as, ectopia of the heart, or of the bladder.
Ectopic
(Ec*top"ic) a. (Med.) Out of place; congenitally displaced; as, an ectopic organ.
Ectoplasm
(Ec"to*plasm) n. [Ecto- + Gr. form.] (Biol.) (a) The outer transparent layer of protoplasm
in a developing ovum. (b) The outer hyaline layer of protoplasm in a vegetable cell. (c) The ectosarc
of protozoan.
Ectoplastic
(Ec`to*plas"tic) a. [Ecto- + Gr. to mold.] Pertaining to, or composed of, ectoplasm.
Ectoprocta
(||Ec`to*proc"ta) n. pl. [NL., fr. Gr. outside + the anus.] (Zoöl.) An order of Bryozoa in which
the anus lies outside the circle of tentacles.
Ectopy
(Ec"to*py) n. (Med.) Same as Ectopia.
Ectorganism
(Ect*or"gan*ism) n. [Ect- + organism.] (Biol.) An external parasitic organism.
Ectosarc
(Ec"to*sarc) n. [Ecto- + Gr. flesh.] (Biol.) The semisolid external layer of protoplasm in some
unicellular organisms, as the amœba; ectoplasm; exoplasm.
Ectosteal
(Ec*tos"te*al) a. (Physiol.) Of or pertaining to ectostosis; as, ectosteal ossification.
Ectostosis
(||Ec`tos*to"sis) n. [NL. See Ect-, and Ostosis.] (Physiol.) A process of bone formation
in which ossification takes place in the perichondrium and either surrounds or gradually replaces the
cartilage.
Ectozoic
(Ec`to*zo"ic) a. (Zoöl.) See Epizoic.
Ectozoön
(||Ec`to*zo"ön) n.; pl. Ectozoa [NL., fr. Gr. 'ekto`s outside outside + zw^,on an animal.] (Zoöl.)
See Epizoön.
Ectropion
(||Ec*tro"pi*on) n. [NL., fr. Gr. fr. a turning aside; from + to turn.] (Med.) An unnatural eversion
of the eyelids.
Ectropium
(||Ec*tro"pi*um) n. [NL.] (Med.) Same as Ectropion.
Ectrotic
(Ec*trot"ic) a. [Gr. for abortion; 'ek out + to wound, cause mischief to.] (Med.) Having a tendency
to prevent the development of anything, especially of a disease.
Ectypal
(Ec"ty*pal) a. [L. ectypus worked in high relief, Gr. 'ek out + stamp, figure. See Type.] Copied,
reproduced as a molding or cast, in contradistinction from the original model.
Ectype
(Ec"type) n. [Cf. F. ectype. See Ectypal.]
