adj.
Pronunciation: - ' v ā -l ə nt also p ə - ' li-v ə -l ə nt
Function: adjective
Etymology: International Scientific Vocabulary
Date: 1881
1 : having a chemical valence greater usually than two
2 : effective against, sensitive toward, or counteracting more than one toxin, microorganism, or antigen < polyvalent vaccines>
– poly · va · lence \ -l ə n(t)s \ noun