peristalsis noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com

Definition of peristalsis noun from the Oxford Advanced American Dictionary

peristalsis

noun

NAmE//ˌpɛrəˈstɔlsəs//

, NAmE//ˌpɛrəˈstɑlsəs//

, NAmE//ˌpɛrəˈstælsəs//

[uncountable] (biology)

the wave-like movements of the intestine, etc. caused when the muscles contract and relax

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