Definition: Extended household
United Nations terminology
Household consisting of a single family nucleus and other persons related to the nucleus, or married couple with other relative(s) only; or two or more family nuclei related to each other without any other persons; or two or more persons related to each other, none of whom constitute a family nucleus.
United Nations Common Database (UNCDB), based on United Nations, “Principles and Recommendations for Population and Housing Censuses, Revision 1”, Series M, No. 67, Rev. 1, United Nations, New York, 1998