Meaning of TETRAD
| Pronunciation: | | 'tetrad
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 WordNet Dictionary |
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| | Definition: | | [n] the cardinal number that is the sum of three and one |
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| | Synonyms: | | 4, four, foursome, IV, Little Joe, quadruplet, quartet, quatern, quaternary, quaternion, quaternity |
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| | See Also: | | digit, figure | |
| Webster's 1913 Dictionary |
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| | Definition: | | \Tet"rad\, n. [L. tetras, -adis, Gr. ?, ?: cf. F.
t['e]trade.]
1. The number four; a collection of four things; a
quaternion.
2. (Chem.) A tetravalent or quadrivalent atom or radical; as,
carbon is a tetrad.
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| Biology Dictionary |
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- A pair of homologous chromosomes which have joined together (are synapsed) during prophase I and metaphase I of meiosis.
- A group of four; four pollen grains remaining fused together at maturity.
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