Category:Tetra-

Tet"ra-. Etym: [gr. Four.]

1. A combining form or prefix signifying four, as in tetrabasic, Tetrapetalous.

2. (chem.)

Defn: a combining form (also used adjectively) denoting four Proportional or combining parts of the substance or ingredient Denoted by the term to which it is prefixed, as in tetra-chloride, Tetroxide.