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Medical Dictionary

peristalsis

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noun peri·stal·sis \ˌper-ə-ˈstȯl-səs, -ˈstäl-, -ˈstal-\

Medical Definition of peristalsis

plural peristalses \-ˌsēz\play

  1. :  successive waves of involuntary contraction passing along the walls of a hollow muscular structure (as the esophagus or intestine) and forcing the contents onward—compare segmentation 2




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a division or portion of a pool or whole

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