ancestor(redirected from ancester)
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A person in the direct line of descent from which a subject of interest is derived (for example, parents or grandparents; but no collaterals or descendants).
Farlex Partner Medical Dictionary © Farlex 2012
1. A person from whom one is descended, especially if more remote than a grandparent; a forebear.
2. Biology The actual or hypothetical organism or stock from which later kinds evolved.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.