extended family

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A family group that consists of parents, children, and other relatives, often living in close proximity.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun a family consisting of parents and children, along with either grandparents, grandchildren, aunts or uncles, cousins etc

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a family consisting of the nuclear family and their blood relatives