'Monogamist' definitions:

Definition of 'monogamist'

From: WordNet
noun
Someone who practices monogamy (one spouse at a time) [syn: monogamist, monogynist]

Definition of 'Monogamist'

From: GCIDE
  • Monogamist \Mo*nog"a*mist\, n. One who practices or upholds monogamy. --Goldsmith. [1913 Webster]