Definition of zooid

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Zooid (n.) One of the individual animals in a composite group, as of Anthozoa, Hydroidea, and Bryozoa; -- sometimes restricted to those individuals in which the mouth and digestive organs are not developed..

Lern More About Zooid

Vibraculum :: Vibraculum (n.) One of the movable, slender, spinelike organs or parts with which certain bryozoans are furnished. They are regarded as specially modified zooids, of nearly the same nature as Avicularia..
Taster :: Taster (n.) One of a peculiar kind of zooids situated on the polyp-stem of certain Siphonophora. They somewhat resemble the feeding zooids, but are destitute of mouths. See Siphonophora..
Bryozoum :: Bryozoum (n.) An individual zooid of a bryozoan coralline, of which there may be two or more kinds in a single colony. The zooecia usually have a wreath of tentacles around the mouth, and a well developed stomach and intestinal canal; but these parts are lacking in the other zooids (Avicularia, Ooecia, etc.)..
Nectocalyx :: Nectocalyx (n.) One of the zooids of certain Siphonophora, having somewhat the form, and the essential structure, of the bell of a jellyfish, and acting as a swimming organ..
Systematic :: System (n.) One of the stellate or irregular clusters of intimately united zooids which are imbedded in, or scattered over, the surface of the common tissue of many compound ascidians..
Hydrophyllium :: Hydrophyllium (n.) One of the flat, leaflike, protective zooids, covering other zooids of certain Siphonophora..
Zooecium :: Zooecium (n.) One of the cells or tubes which inclose the feeling zooids of Bryozoa. See Illust. of Sea Moss.
Polypide :: Polypide (n.) One of the ordinary zooids of the Bryozoa.
Pennatula :: Pennatula (n.) Any one of numerous species of Pennatula, Pteroides, and allied genera of Alcyonaria, having a featherlike form; a sea-pen. The zooids are situated along one edge of the side branches..
Protozoon :: Protozoon (n.) A single zooid of a compound protozoan.
Coenenchyma :: Coenenchyma (n.) The common tissue which unites the polyps or zooids of a compound anthozoan or coral. It may be soft or more or less ossified. See Coral.
Spermatozooid :: Spermatozooid (n.) A spermatozoid.
Polyp :: Polyp (n.) One of the feeding or nutritive zooids of a hydroid or coral.
Zooid :: Zooid (a.) Pertaining to, or resembling, an animal..
Athecata :: Athecata (n. pl.) A division of Hydroidea in which the zooids are naked, or not inclosed in a capsule. See Tubularian..
Coenoecium :: Coenoecium (n.) The common tissue which unites the various zooids of a bryozoan.
Proliferate :: Proliferate (v. t.) To produce zooids by budding.
Porpita :: Porpita (n.) A genus of bright-colored Siphonophora found floating in the warmer parts of the ocean. The individuals are round and disk-shaped, with a large zooid in the center of the under side, surrounded by smaller nutritive and reproductive zooids, and by slender dactylozooids near the margin. The disk contains a central float, or pneumatocyst..
Person :: Person (n.) A shoot or bud of a plant; a polyp or zooid of the compound Hydrozoa Anthozoa, etc.; also, an individual, in the narrowest sense, among the higher animals..
Sporophore :: Sporogony (n.) The growth or development of an animal or a zooid from a nonsexual germ.
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