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5 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 tet·rad /ˈtɛˌtræd/
 四個,四個一組,四分染色體

From: DICT.TW English-Chinese Medical Dictionary 英漢醫學字典

 tet·rad /ˈtɛˌtræd/ 名詞
 四分體,四裂體,四聯症,四價元素,四分孢子,四聯體,四聯球菌,四合花粉

From: Taiwan MOE computer dictionary

 tetrad
 四元群

From: Webster's Revised Unabridged Dictionary (1913)

 Tet·rad n.
 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.
 

From: WordNet (r) 2.0

 tetrad
      n : the cardinal number that is the sum of three and one [syn: four,
           4, IV, quatern, quaternion, quaternary, quaternity,
           quartet, quadruplet, foursome, Little Joe]