METAZOAN

metazoan

(noun) any animal of the subkingdom Metazoa; all animals except protozoans and sponges

Source: WordNet® 3.1

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Etymology

Noun

metazoan (plural metazoans)

(zoology) Any animal that undergoes development from an embryo stage with three tissue layers, namely the ectoderm, mesoderm, and endoderm.

(zoology) Any animal that is multicellular.

Adjective

metazoan (not comparable)

Having to do with animals that develop from an embryo with three tissue layers.

Having to do with animals that are multicellular.

Synonyms

• metazoic

Source: Wiktionary

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Met`a*zo"an, n.; pl. Metazoans (. (Zoöl.)

Definition: One of the Metazoa.

Source: Webster’s Unabridged Dictionary 1913 Edition

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