1. (

• churn ,
• boil ,
• moil ,
• roil

) be agitated; "the sea was churning in the storm" ;

2. (

• roil ,
• rile

) make turbid by stirring up the sediments of ;

1. (

• churning ,
• roiling ,
• roiled ,
• roily ,
• turbulent

) (of a liquid) agitated vigorously; in a state of turbulence; "the river's roiling current"; "turbulent rapids" ;