metazoan

noun 2adj 2

Collocations

noun

Any animal that is multicellular.

Any animal that undergoes development from an embryo stage with two or three tissue layers, namely the ectoderm, endoderm, and sometimes mesoderm.

adj

Having to do with animals that are multicellular.

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

i Register

In some senses, metazoan is marked as obsolete. Watch for register when choosing this word.

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