TETRA-


Meaning of TETRA- in English

a combining form or prefix signifying four, as in tetrabasic, tetrapetalous.

2. tetra- ·- 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.

Webster English vocab.      Английский словарь Webster.