Definition of serial monogamy noun from the Oxford Advanced Learner's Dictionary

 

serial monogamy

 noun
noun
BrE
 
; NAmE
 
[uncountable]
 
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the fact or custom of having more than one husband, wife or sexual partner in your life, but only one at a time Some research suggests that serial monogamy is good for men but bad for women.
See the Oxford Advanced American Dictionary entry: serial monogamy