柯林斯詞典peristalsis /?p?r??st?ls?s/ 1. N the succession of waves of involuntary muscular contraction of various bodily tubes, esp of the alimentary tract, where it effects transport of food and waste products (尤指消化道器官的)蠕動[physiol] 返回 peristalsis劍橋詞典the repeated movements made by the muscle walls in the digestive tract tightening and then relaxing that push food and waste through the body 蠕動(消化道肌肉壁所作的反複運動,即張緊而後舒張,推動食物和廢物通過身躰) 返回 peristalsis