metazoa – מילון אנגלי-אנגלי
Metazoa
n.
division of multi-celled animals (Zoology)
Animal
Metazoa
Noun
1. multicellular animals having cells differentiated into tissues and organs and usually a digestive cavity and nervous system
(synonym) subkingdom Metazoa
(hypernym) subkingdom
(member-holonym) Animalia, kingdom Animalia, animal kingdom
(member-meronym) metazoan
Metazoa
(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.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter.
About
Metazoa
A major division in the Animal Kingdom consisting of multicellular animals.