quadrivalent

Tetravalent.

In chem., noting an atom the equivalence of which is four, or an element one atom of which is equivalent, in combining power, to four atoms of hydrogen; tetradic; tetratomic.

A quadrivalent atom or element.

Having a valence of four; capable of combining with, being replaced by, or compared with, four monad atoms; tetravalent; — said of certain atoms and radicals.

Having a valence of four.

Any quadrivalent chromosome.