Word Study
metazoa
WORDNET DICTIONARY
Noun metazoa has 1 sense
- metazoa(n = noun.animal) subkingdom metazoa - multicellular animals having cells differentiated into tissues and organs and usually a digestive cavity and nervous system; Array is a member of animal kingdom, animalia, kingdom animalia
is a kind of subkingdom
CIDE DICTIONARY
metazoa, n. pl. [NL., fr. Gr. after + zo^,on an animal.].
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. [1913 Webster]
For further exploring for "metazoa" in Webster Dictionary Online
