METAZOA

Metazoa, subkingdom Metazoa

(noun) multicellular animals having cells differentiated into tissues and organs and usually a digestive cavity and nervous system

METAZOAN

metazoan

(noun) any animal of the subkingdom Metazoa; all animals except protozoans and sponges

Source: WordNet® 3.1


Noun

metazoa pl (plural only)

(zoology) The multicellular animals of the subkingdom Metazoa considered collectively.

Source: Wiktionary


Met`a*zo"a, n. pl. Etym: [NL., fr. Gr. (Zoöl.)

Definition: 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.

METAZOON

Met`a*zo"ön, n. Etym: [NL.] (Zoöl.)

Definition: One of the Metazoa.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

23 January 2025

LEFT

(adjective) being or located on or directed toward the side of the body to the west when facing north; “my left hand”; “left center field”; “the left bank of a river is bank on your left side when you are facing downstream”


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Coffee Trivia

Contrary to popular belief, coffee beans are not technically beans. They are referred to as such because of their resemblance to legumes. A coffee bean is a seed of the Coffea plant and the source for coffee. It is the pit inside the red or purple fruit, often referred to as a cherry. Just like ordinary cherries, the coffee fruit is also a so-called stone fruit.

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