break a sweat

:  to separate into parts with suddenness or violence

:  fracture

: to fracture a bone of (a bodily part)

:  an act or action of breaking

:  the opening shot in a game of pool or billiards

:  a gap or opening caused or appearing as if caused by damage :  a condition produced by or as if by breaking :  gap

:  to excrete moisture in visible quantities through the openings of the sweat glands :  perspire

:  to labor or exert oneself so as to cause perspiration

:  to emit or exude moisture

:  hard work :  drudgery

:  the fluid excreted from the sweat glands of the skin :  perspiration

:  moisture issuing from or gathering in drops on a surface