| 释义 |
peristalsis
UK [ˌper.ɪ'stæl.sɪs] US [-'stɑ:l-] noun uncountable specialized
■the repeated movements made by the muscle walls in the digestive tract tightening and then relaxing, which push food and waste through the body 蠕动（消化道肌肉壁所作的反覆运动，即收紧而后舒张，推动食物和废物通过身体） |