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ancestor

American  
[an-ses-ter, -suh-ster] / ˈæn sɛs tər, -sə stər /

noun

  1. a person from whom one is descended; forebear; progenitor.

  2. Biology. the actual or hypothetical form or stock from which an organism has developed or descended.

  3. an object, idea, style, or occurrence serving as a prototype, forerunner, or inspiration to a later one.

    The balloon is an ancestor of the modern dirigible.

  4. a person who serves as an influence or model for another; one from whom mental, artistic, spiritual, etc., descent is claimed.

    a philosophical ancestor.

  5. Law. a person from whom an heir derives an inheritance.


ancestor British  
/ ˈænsɛstə /

noun

  1. (often plural) a person from whom another is directly descended, esp someone more distant than a grandparent; forefather

  2. an early type of animal or plant from which a later, usually dissimilar, type has evolved

  3. a person or thing regarded as a forerunner of a later person or thing

    the ancestor of the modern camera

"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

Other Word Forms

  • ancestress noun

Etymology

Origin of ancestor

1250–1300; Middle English ancestre < Old French (with t developed between s and r ) < Latin antecessor antecessor

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"I'm reminded of the famous 'Lucy' fossil, one of our hominid ancestors that lived 3 million years ago and was one of the key 'missing links' between apes and humans," he said.

From Science Daily

Their highly organized societies raise an obvious question: how did insects with such advanced social systems evolve from solitary ancestors that closely resembled modern cockroaches?

From Science Daily

More gripping is the author’s evocation of her ancestors’ tale.

From The Wall Street Journal

Woodroof told AFP his ancestors arrived in what is now Canada "hundreds and hundreds of years" ago.

From Barron's

How am I supposed to toss away the songs our ancestors passed on to us from the time they fled Spain?

From Literature