| a. | 1. | (Chem.) 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. |
| Adj. | 1. | univalent - used of a chromosome that is not paired or united with its homologous chromosome during synapsis; "a univalent chromosome" Antonyms: multivalent - used of the association of three or more homologous chromosomes during the first division of meiosis |
| 2. | univalent - having a valence of 1 Synonyms: monovalent |