'nuclear family' definitions:
Definition of 'nuclear family'
From: WordNet
noun
A family consisting of parents and their children and grandparents of a marital partner [syn: nuclear family, conjugal family]
Definition of 'nuclear family'
From: GCIDE
- nuclear family \nuclear family\ n. A family consisting of parents and their children and grandparents of a marital partner. [WordNet 1.5]