• (a.) 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. Found on http://thinkexist.com/dictionary/meaning/univalent/
having a valence of one; monovalent. · (of a chromosome) single; unpaired; not possessing or joining its homologous chromosome in synapsis. Found on https://www.infoplease.com/dictionary/univalent