Metazoa

Metazoa /Meta·zoa/ (met?ah-zo´ah) that division of the animal kingdom embracing the multicellular animals whose cells differentiate to form tissues, i.e., all animals except the Protozoa.metazo´almetazo´an

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Met·a·zo·a (mt-z)

n.

A subdivision of the animal kingdom that includes all multicellular animal organisms having cells that are differentiated and form tissues and organs.

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meta·zoan adj. & n.

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Metazoa

the division of the animal kingdom that includes the multicellular animals, i.e. all animals except the Protozoa.