1.1 [no object] (Of a liquid) move in a turbulent, swirling manner: the sea roiled below her
More example sentences
- The water roils around the combatants, and the sky is filled with clouds and tiny lines that intensify the sense of cataclysm.
- The core mantle boundary is a complex and dynamic area that churns and chugs as the liquid iron core roils at the bottom of the rock-like mantle.
- The North Sea roils just off the former hippie village of Monster, 40 miles southwest of Amsterdam.
late 16th century: perhaps from Old French ruiler 'mix mortar', from late Latin regulare 'regulate'.
Definition of roil in:
- The US English dictionary