Practising or supporting the principle of monogamy.Marrying only once —that is, not remarrying after the death of the spouse: opposed to digamous.Marrying only one at a time: opposed to bigamous or polygamous.Of or pertaining to monogamy: as, monogamous doctrines or customs.In zoology, having only one mate; living in pairs: as, a monogamous family of birds.In botany, having solitary flowers with united anthers, as in Lobelia.