Толковый словарь английского языка - churn

I. noun Etymology: Middle English chyrne, from Old English cyrin; akin to Old Norse kjarni ~ Date: before 12th century a vessel for making butter in which milk or cream is agitated in order to separate the oily globules from the watery medium, II. verb Date: 15th century transitive verb to agitate (milk or cream) in a ~ in order to make butter, 2. to stir or agitate violently , to make (as foam) by so doing, to make (the account of a client) excessively active by frequent purchases and sales primarily in order to generate commissions, intransitive verb to work a ~, 2. to produce, proceed with, or experience violent motion or agitation , to proceed by or as if by means of rotating members (as wheels or propellers)