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Pronunciation: met'a-zo'a

Definition: A subkingdom of the kingdom Animalia, including all multicellular animal organisms in which the cells are differentiated and form tissues; distinguished from the subkingdom Protozoa, or unicellular animal organisms.

[meta- + G. zoon, animal]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.