monogamy

1 ENTRIES FOUND:
monogamy /məˈnɑːgəmi/ noun
monogamy
/məˈnɑːgəmi/
noun
Britannica Dictionary definition of MONOGAMY
[noncount]
1 
: the state or practice of being married to only one person at a time — compare polygamy
2 
: the state or practice of having only one sexual partner during a period of time

— monogamous

/məˈnɑːgəməs/ adjective