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Medical Term:


Pronunciation: i'so


  1. Prefix meaning equal, like.
  2. In chemistry, prefix indicating “isomer of” (isomerism), isocyanate vs. cyanate.
  3. In immunology, prefix designating sameness with respect to species; in recent years, the meaning has shifted to sameness with respect to the genetic constitution of individuals.

[G. isos, equal]

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