TETRAD
Source: 567
Tet″rad (?), n. [[L. tetras, -adis, Gr. �, �: cf. F. tétrade.]] 1. 1. The number four; a collection of four things; a quaternion.
2. 2. (Chem.) A tetravalent or quadrivalent atom or radical; as, carbon is a tetrad.
Source: 567
Tet″rad (?), n. [[L. tetras, -adis, Gr. �, �: cf. F. tétrade.]] 1. 1. The number four; a collection of four things; a quaternion.
2. 2. (Chem.) A tetravalent or quadrivalent atom or radical; as, carbon is a tetrad.