A movement in the oesophagus or intestine which causes their contents to move in the opposite direction to usual peristalsis, so leading to vomiting.
A wave of contraction in the alimentary canal that passes in an oral (i.e. upward or backward) direction (compare peristalsis). It was formerly thought that antiperistalsis occurred in vomiting but modem physiological studies suggest that it never takes place in man.
A movement in the bowels and stomach by which the food and other contents are passed upwards, instead of in the proper direction.
Measures used to reduce temperature in fever. Varieties include cold-sponging, wet-packs, baths and drugs such as quinine, salicylates and aspirin.
Reversed peristalsis; a wave of contraction in the gastrointestinal tract moving toward the oral end. In the duodenum it is associated with vomiting; in the ascending colon it occurs normally.