po·lyg·a·mous \pəˈligəməs\adjective Etymology: Greek polygamos, from poly- + -gamos -gamous 1.: of, relating to, characterized by, or involving polygamy : having a plurality of wives or husbands < polygamous marriages > 2.: bearing both hermaphrodite and unisexual flowers on the same plant 3.zoology: having more than one mate at the same time • po·lyg·a·mous·lyadverb