bivalent

Adjective

 * 1)  Having a valence of 2; having two ligands
 * 2)  Of, or relating to a pair of homologous synapsed chromosomes that occur during meiosis.
 * 3)  Protecting against two different viruses.

Translations

 * Czech:
 * Polish: dwuwartościowy

Noun

 * 1)  Any bivalent chromosome.

Etymology
From.

Adjective

 * 1) bivalent

Etymology
.