primordial

primordial definition - medical

pri·mor·di·al (prī-môrˈdē-əl)

adjective
  1. Being or happening first in sequence of time; primary; original.
  2. Belonging to or characteristic of the earliest stage of development of an organism or part.
  3. Relating to a primordium.

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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