ECTODERM

ectoderm, exoderm, ectoblast

(noun) the outer germ layer that develops into skin and nervous tissue

Source: WordNet® 3.1


Etymology

Noun

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



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Word of the Day

14 March 2025

PARASITISM

(noun) the relation between two different kinds of organisms in which one receives benefits from the other by causing damage to it (usually not fatal damage)


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Coffee Trivia

Coffee is a brewed drink prepared from roasted coffee beans, the seeds of berries from certain Coffea species. When coffee berries turn from green to bright red – indicating ripeness – they are picked, processed, and dried. Dried coffee seeds are roasted to varying degrees, depending on the desired flavor.

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