Monogamous
Monogamous , adjective
[Latin monogamus having but one wife, Greek {not transcribed}; mo`nos single + {not transcribed} marriage.]
1.
Upholding, or practicing, monogamy.
2.
(Botany) Same as Monogamian.
3.
(Zoology) Mating with but one of the opposite sex; -- said of birds and mammals.