(rĭ-vŭl'shŭn )

1. Repugnance, hostility, or extreme distaste for a person or thing.
2. The act of driving backward, as diverting disease from one part to another by a quick withdrawal of blood from that part—a treatment that has its origins in ancient medical care.
3. Circulatory changes obtained by sudden and intense reactions to heat and cold.

   SEE: counterirritation.