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despeciation in Medicine

despeciation

(dē-spē′shē-āshən, -sē-)
n.
  1. The alteration or loss of species characteristics.
  2. The removal of species-specific antigenic properties from a foreign protein.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.