meaning of tetrad
1. The number four; a collection of four things; a quaternion.
2. A tetravalent or quadrivalent atom or radical; as, carbon is a tetrad.
3. the cardinal number that is the sum of three and one
Related Words
tetrad | tetradactyl | tetradactyle | tetradactylous | tetradecane | tetradecanoic acid | tetradecapoda | tetradic | tetradite | tetradon | tetradont | tetradrachm | tetradrachma | tetradymite | tetradynamia | tetradynamian | tetradynamous |