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Medical Term:


Pronunciation: hi'per-ton'ik


  1. Having a greater degree of tension.
  2. Having a greater osmotic pressure than a reference solution, which is ordinarily assumed to be blood plasma or interstitial fluid; more specifically, refers to a fluid in which cells shrink.

Synonym(s): spastic1

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.