名詞 peristalsis:

1. the process of wavelike muscle contractions of the alimentary tract that moves food along
   同義詞：vermiculation

per.i.stal.sis

n.（名詞）
【復數(shù)】 per.i.stal.ses[-sôz]
The wavelike muscular contractions of the alimentary canal or other tubular structures by which contents are forced onward toward the opening.
蠕動：消化道或其它管狀結(jié)構肌肉的波狀移動，通過這種方式使里面的東西移至出口外

來源：
New Latin
現(xiàn)代拉丁語
from Greek peristaltikos [peristaltic]
源自 希臘語 peristaltikos [蠕動的]
from peristellein [to wrap around]
源自 peristellein [裹在…周圍]
peri- [peri-]
peri- [前綴，表示.周圍的.]
stellein [to place] * see stel-
stellein [放置] *參見 stel-

【引伸】
per.istal.tic
per.istal.tically
adv.（副詞）