Definition of Metazoa

1. Noun. Multicellular animals having cells differentiated into tissues and organs and usually a digestive cavity and nervous system.


Definition of Metazoa

1. n. pl. 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.

Definition of Metazoa

1. metazoon [n] - See also: metazoon

Medical Definition of Metazoa

1. 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. Origin: NL, fr. Gr. After + an animal. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Metazoa

metatypical
metatypical carcinoma
Metaurus River
metavanadate
metavanadic
metaxalone
metaxylem
metaxylems
metaxylene
metayage
metayages
metayer
metayer
metayers
metazoa (current term)
Metazoa
metazoal
metazoan
metazoan
metazoans
metazoans
metazoic
metazoic
metazoon
metazoon
metazoonosis
metcast
metcasts
Metchnikoff
Metchnikoff

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