Meaning of “nuclear family” in the English Dictionary

american-english dictionary

"nuclear family" in American English

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nuclear familynoun [ C ]

us /ˈnu·kli·ər ˈfæm·ə·li/

a social unit of two parents and their children:

We average fewer than two children per nuclear family.

(Definition of “nuclear family” from the Cambridge Academic Content Dictionary © Cambridge University Press)