a kinship group consisting of a family nucleus and various relatives, as grandparents, usually living in one household and functioning as a larger unit.Compare nuclear family.
(loosely) one's family conceived of as including aunts, uncles, cousins, in-laws, and sometimes close friends and colleagues.
Origin of extended family
First recorded in 1940–45
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
sociol anthropol a social unit that contains the nuclear family together with blood relatives, often spanning three or more generations
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
A type of family in which relatives in addition to parents and children (such as grandparents, aunts, uncles, and cousins) live in a single household. A nuclear family forms the core of an extended family.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.