Strim‧mer /ˈstrɪməʳ/ British English trademark
a type of machine for cutting weeds (=unwanted garden plants) and grass in places that a LAWNMOWER cannot reach. You hold the machine in your hand and move it just above the ground, and a strong spinning plastic string cuts the grass. In the US there is a similar machine called a Weed Whacker..

[TahlilGaran] Dictionary of Contemporary English ▲