ETYM Latin bis twice + valens worth. See Valence.
(Chemistry) Having a valence of two or having two valences; SYN. divalent.
In biology, a name given to the pair of homologous chromosomes during reduction division (meiosis). In chemistry, the term is sometimes used to describe an element or group with a valence of two, although the term “divalent” is more common. + prikaži više