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1. (n.) Metazoa
a zoological group comprising the multicellular animals.
Etymology: (1870–75; < NL; see meta -, -zoa)
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| Definition of 'metazoa' |
Princeton's WordNet |
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1. (noun) Metazoa, subkingdom Metazoa
multicellular animals having cells differentiated into tissues and organs and usually a digestive cavity and nervous system
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| Definition of 'metazoa' |
Webster Dictionary |
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1. metazoa
those animals in which the protoplasmic mass, constituting the egg, is converted into a multitude of cells, which are metamorphosed into the tissues of the body. A central cavity is commonly developed, and the cells around it are at first arranged in two layers, -- the ectoderm and endoderm. The group comprises nearly all animals except the Protozoa
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Definitions of metazoa 
