Dictionary

metazoan

noun meta·zo·an \-ˈzō-ən\

Definition of METAZOAN

:  any of a group (Metazoa) that comprises all animals having the body composed of cells differentiated into tissues and organs and usually a digestive cavity lined with specialized cells
metazoan adjective

Origin of METAZOAN

New Latin Metazoa, from meta- + -zoa
First Known Use: 1879

metazoan

noun meta·zo·an \-ˈzō-ən\   (Medical Dictionary)

Medical Definition of METAZOAN

:  any of the animals that comprise the taxon Metazoa, that have the body when adult composed of numerous cells differentiated into tissues and organs and usually a digestive cavity lined with specialized cells, and that usually include the coelenterates and all higher animals but sometimes also include the sponges and mesozoans
metazoan adjective

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April 27, 2015
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