family tree

American  

noun

1. a genealogical chart showing the ancestry, descent, and relationship of all members of a family or other genealogical group.

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family tree British  

noun

1. Also called: genealogical tree.  a chart showing the genealogical relationships and lines of descent of a family

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Etymology

Origin of family tree

First recorded in 1800–10

Example Sentences

By reconstructing this evolutionary history, the scientists were able to map a 700-million-year family tree of blood cells.

From Science Daily • May 27, 2026

“The mental health of your family tree is in some way statistically associated with your risk of autism,” said Brian K. Lee, a professor of epidemiology and biostatistics at Drexel University.

From Los Angeles Times • May 27, 2026

Television genealogists may point out that Colbert’s branch of the talk show family tree is still represented by his Comedy Central brethren on “The Daily Show,” including Stewart, and John Oliver on “Last Week Tonight.”

From Salon • May 21, 2026

Finn and his Danish relatives had similar physical characteristics to the UK couple - light eyes and brown hair, an extended family tree showed.

From BBC • Mar. 31, 2026

All that Byrd could see then was that Frank’s family tree was dropping branches and leaves, and that she needed to get Axel and Frank and herself to the reunion.

From "A Bird Will Soar" by Alison Green Myers