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peristaltic (adj.)

1650s, from Modern Latin, from Greek peristaltikos (Galen), literally "contracting around," from peri "around, about" (see peri-) + stalsis "checking, constriction," related to stellein "draw in, bring together; set in order," from PIE *stel-yo-, suffixed form of root *stel- "to put, stand, put in order," with derivatives referring to a standing object or place.

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