(genetics) Of, or pertaining to, a chromosome that is not paired or associated or joined with its homologous chromosome during meiosis.
(chemistry) Having a valence of one; capable of combining with, or of being substituted for, one atom of hydrogen; monovalent; said of certain atoms and radicals.
(genetics) For example a chromosome that is not paired with its homologue during the synapsis period of Prophase I of Meiosis I is referred to as a univalent chromosome.
Word origin: uni- (a combining form that means single or one) + valent from valence.
Related forms: univalence (noun)
Compare: bivalent, polyvalent
See also: valence