Question

about nuclear family​

Answer 1

A nuclear family, elementary family or conjugal family is a family group consisting of two parents and their children (one or more). It is in contrast to a single-parent family, the larger extended family, or a family with more than two parents.

Answer 2

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Nuclear family refers to the core members of a family, usually parents and children. Nuclear had a long history of figurative use before its main association with "nuclear energy," as nucleus has origins meaning "kernel" or more simply "something essential."