monogamy

The practice or condition of having a single sexual partner during a period of time.

The practice or condition of being married to only one person at a time.

The practice of marrying only once in a lifetime.

The condition of having only one mate during a breeding season or during the breeding life of a pair.

The practice of marrying only once, or the principle which upholds that practice; the principle that forbids remarriage after the death of a former husband or wife: opposed to digamy. See bigamy, 2.

The condition of being married to only one person at one time: opposed to bigamy or polygamy. See bigamy, 1.

In zoology, the habit of having only one mate; the habit of living in pairs; the paired state.

Single marriage; marriage with but one person, husband or wife, at the same time; — opposed to polygamy. Also, one marriage only during life; — opposed to deuterogamy.

State of being paired with a single mate.