MONOGAMY
monogamy, monogamousness
(noun) the practice or state of having only one spouse at a time
Source: WordNet® 3.1
Etymology
Noun
monogamy (countable and uncountable, plural monogamies)
A form of sexual bonding involving a permanent pair bond between two beings.
Antonym: polygamy
The practice of being married to one person as opposed to multiple.
Antonym: polygamy
Source: Wiktionary
Mo*nog"a*my, n. Etym: [L. monogamia, Gr. monogamie.]
1. 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.
2. (Zoöl.)
Definition: State of being paired with a single mate.
Source: Webster’s Unabridged Dictionary 1913 Edition