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单词 peristalsis
释义

WordReference Random House Unabridged Dictionary of American English © 2024
per•i•stal•sis  (per′ə stôlsis, -stal-),USA pronunciation n., pl. -ses (-sēz).USA pronunciation [Physiol.]
  1. Physiology, Pathologythe progressive wave of contraction and relaxation of a tubular muscular system, esp. the alimentary canal, by which the contents are forced through the system.
  • Greek peri- peri- + stálsis contraction, equivalent. to stal- (variant stem of stéllein to set, bring together, compress) + -sis -sis
  • Neo-Latin
  • 1855–60

Collins Concise English Dictionary © HarperCollins Publishers::
peristalsis /ˌpɛrɪˈstælsɪs/ n ( pl -ses / -siːz/)
  1. 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
Etymology: 19th Century: from New Latin, from peri- + Greek stalsis compression, from stellein to press together

ˌperiˈstaltic adj
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