Definition of tetrad

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Tetrad (n.) The number four; a collection of four things; a quaternion.

Lern More About Tetrad

Tetradynamia :: Tetradynamia (n. pl.) A Linnaean class of plants having six stamens, four of which are longer than the others..
Phatagin :: Phatagin (n.) The long-tailed pangolin (Manis tetradactyla); -- called also ipi.
Tetradite :: Tetradite (n.) A person in some way remarkable with regard to the number four, as one born on the fourth day of the month, or one who reverenced four persons in the Godhead..
Zenick :: Zenick (n.) A South African burrowing mammal (Suricata tetradactyla), allied to the civets. It is grayish brown, with yellowish transverse stripes on the back. Called also suricat..
Tetradecane :: Tetradecane (n.) A light oily hydrocarbon, C14H30, of the marsh-gas series; -- so called from the fourteen carbon atoms in the molecule..
Amphipoda :: Amphipoda (n. pl.) A numerous group of fourteen -- footed Crustacea, inhabiting both fresh and salt water. The body is usually compressed laterally, and the anterior pairs or legs are directed downward and forward, but the posterior legs are usually turned upward and backward. The beach flea is an example. See Tetradecapoda and Arthrostraca..
Tetradecapoda :: Tetradecapoda (n. pl.) Same as Arthrostraca.
Tetradymite :: Tetradymite (n.) A telluride of bismuth. It is of a pale steel-gray color and metallic luster, and usually occurs in foliated masses. Called also telluric bismuth..
Tetrad :: Tetrad (n.) A tetravalent or quadrivalent atom or radical; as, carbon is a tetrad..
Tetradynamous :: Tetradynamous (a.) Belonging to the order Tetradynamia; having six stamens, four of which are uniformly longer than the others..
Tetradynamian :: Tetradynamian (n.) A plant of the order Tetradynamia.
Tetradrachma :: Tetradrachma (n.) A silver coin among the ancient Greeks, of the value of four drachms..
Arthrostraca :: Arthrostraca (n. pl.) One of the larger divisions of Crustacea, so called because the thorax and abdomen are both segmented; Tetradecapoda. It includes the Amphipoda and Isopoda..
Gymnodont :: Gymnodont (n.) One of a group of plectognath fishes (Gymnodontes), having the teeth and jaws consolidated into one or two bony plates, on each jaw, as the diodonts and tetradonts. See Bur fish, Globefish, Diodon..
Tetradactyl :: Tetradactyl (a.) Alt. of Tetradactyl.
Tetradactylous :: Tetradactylous (a.) Having, or characterized by, four digits to the foot or hand..
Tetradic :: Tetradic (a.) Of or pertaining to a tetrad; possessing or having the characteristics of a tetrad; as, a carbon is a tetradic element..
Tamandu :: Tamandu (n.) A small ant-eater (Tamandua tetradactyla) native of the tropical parts of South America.
Tetradrachm :: Tetradrachm (n.) Alt. of Tetradrachm.
Tetrad :: Tetrad (n.) The number four; a collection of four things; a quaternion.
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