- Denoting mutual opposition in action among structures, agents, diseases, or physiologic processes.
- 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]
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Examples: glitazone, GI cocktail, etc.