tetrad

6 senses · Free VividLex dictionary · Thesaurus

1. n. The number four; a collection of four things; a quaternion. Source: opted
2. n. A tetravalent or quadrivalent atom or radical; as, carbon is a tetrad. Source: opted
3. n. the cardinal number that is the sum of three and one Source: wordnet
4. 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. Source: webster
5. A tetravalent or quadrivalent atom or radical; as, carbon is atetrad. Source: adambom
6. n the cardinal number that is the sum of three and one Source: ecdict

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