progenitor

progenitor definition - medical

pro·gen·i·tor (prō-jĕnˈĭ-tər)

noun
  1. A direct ancestor.
  2. An originator of a line of descent.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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