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peristalsis Line breaks: peri|stal¦sis
Pronunciation: /ˌpɛrɪˈstalsɪs/

Definition of peristalsis in English:

noun

[mass noun] Physiology
The involuntary constriction and relaxation of the muscles of the intestine or another canal, creating wave-like movements which push the contents of the canal forward.
Example sentences
  • Yoga helps your body reabsorb and expel gas by stimulating peristalsis, the muscle contractions that eliminate waste.
  • Waves of muscle contractions called peristalsis force food down through the esophagus to the stomach.
  • The initial colonization of the walls of the ureter is in areas of turbulent flow which leads to paralysis of peristalsis.

Derivatives

peristaltic

1
Pronunciation: /pɛrɪˈstaltɪk/
adjective
Example sentences
  • He also suggested an expiratory wave of peristaltic smooth muscle contraction starting from the periphery to aid in exhalation.
  • The normal esophagus responds immediately with a reflexive peristaltic contraction, a phenomenon called secondary peristalsis.
  • Local stimulation by distension along the body of the esophagus will elicit a peristaltic wave at the stimulus site.

peristaltically

2
Pronunciation: /pɛrɪˈstaltɪk/
adverb
Example sentences
  • The pharyngeal constrictors contract peristaltically as a unit.
  • Yet another lineage originated, probably from peristaltically digging roundworms.

Origin

Mid 19th century: modern Latin, from Greek peristallein 'wrap around', from peri- 'around' + stallein 'to place'.

Definition of peristalsis in:

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