From Longman Dictionary of Contemporary Englishwindbreakwind‧break /ˈwɪndbreɪk/ noun [countable] TBa fence, line of trees, or wall that is intended to protect a place from the wind
Examples from the Corpus
windbreak• It likes a well-drained soil, and a windbreak in windy, cold areas.• Turn sharp left 80yds before a conifer windbreak.• Tree belts are also more effective windbreaks, and provide more protection from the glare of low sun than mounds or fences.• It makes a good windbreak too as it filters the wind, rather than encouraging destructive eddies.• They were a little reluctant to do this, but knew that it would provide an essential rapidly growing windbreak.• Nearby, several rocks have been piled up as if intended to make a rudimentary windbreak or wall.• The ground dipped between two minor cliffs, and the architect must have figured they would make swell windbreaks. 