ectoderm, exoderm, ectoblast
(noun) the outer germ layer that develops into skin and nervous tissue
Source: WordNet® 3.1
ectoderm (plural ectoderms)
(biology) Outermost of the three tissue layers in the embryo of a metazoan animal. Through development, it will produce the epidermis (skin) and nervous system of the adult.
Source: Wiktionary
Ec"to*derm, n. Etym: [Ecto- + -derm.] (Biol.) (a) The outer layer of the blastoderm; epiblast. (b) The external skin or outer layer of an animal or plant, this being formed in an animal from the epiblast. See Illust. of Blastoderm.
Source: Webster’s Unabridged Dictionary 1913 Edition
24 November 2024
(noun) a person (usually but not necessarily a woman) who is thoroughly disliked; “she said her son thought Hillary was a bitch”
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