multivalent vs polyvalent

multivalent and polyvalent both are adjectives.

Word	Noun	Adjective	Verb	Adverb
multivalent	No	Yes	No	No
polyvalent	No	Yes	No	No

As adjectives, multivalent and polyvalent are synonyms defined as:

multivalent and polyvalent: having more than one valence, or having a valence of 3 or higher

multivalent (adjective)	polyvalent (adjective)
used of the association of three or more homologous chromosomes during the first division of meiosis	having more than one valence, or having a valence of 3 or higher
having more than one valence, or having a valence of 3 or higher	containing several antibodies each capable of counteracting a specific antigen
having many values, meanings, or appeals