Definition of ancestor
1a : one from whom a person is descended and who is usually more remote in the line of descent than a grandparent Her ancestors came to America in the 1880s.
3 : a progenitor (see progenitor sense 1b) of a more recent or existing species or group the ancestor of the modern horse
Our Reviews team has selected the best dna test kits.
Love words? Need even more definitions?Merriam-Webster unabridged
Words at Play
Ask the Editors