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Medical Term:


Pronunciation: an-tag′ŏ-nizm


  1. Denoting mutual opposition in action among structures, agents, diseases, or physiologic processes.
  2. A situation in which the combined effect of two or more factors is smaller than the solitary effect of any one of the factors.

Synonym(s): mutual resistance

[G. antagōnisma, from anti, against, + agōnizomai, to fight, fr. agōn, a contest]