Metazoan meaning

mĕtə-zōən
(zoology) Any animal that undergoes development from an embryo stage with three tissue layers, namely the ectoderm, mesoderm, and endoderm. The term applies to all animals except the sponges.
noun
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Any of the animals belonging to the subkingdom Metazoa, having a body made up of differentiated cells arranged in tissues and organs. All multicellular animals besides sponges are metazoans.
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In some systems of classification, any of the very large subkingdom (Metazoa) made up of all animals whose bodies, originating from a single cell, are composed of many differentiated cells arranged into definite organs.
noun
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A multicellular animal. No longer in scientific use.
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Any of numerous heterotrophic eukaryotic organisms of the kingdom Metazoa, characteristically having a multicellular body with cells differentiated into tissues; an animal.
noun
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Of the metazoans.
adjective
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Any of numerous heterotrophic eukaryotic organisms of the kingdom Metazoa, characteristically having a multicellular body with cells differentiated into tissues; an animal.
noun
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Having to do with animals that develop from an embryo with three tissue layers.
adjective
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Origin of metazoan

  • From New Latin Metazōa kingdom name meta– -zōa pl. of -zōon animal –zoon

    From American Heritage Dictionary of the English Language, 5th Edition

  • Metazoa +"Ž -an

    From Wiktionary