Definition of "family tree" []

• A genealogical diagram of a family's ancestry. (noun)
• The ancestors and descendants of a family considered as a group. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "We awakened to discover our family tree was up in the Yellow Oval Room, a glorious 14-foot tree."
• "The Tree of Jesse is a decorative device illustrating the geneology of Christ; it is the family tree of Christianity."
• "The Pelletiers were in fact the fifth-largest family in all of Quebec, and the Cap-Chat arm of the family tree had produced mostly farmers."