scarifier
noun [ C ] uk/ˈskær.ɪ.faɪ.ər/ us/ˈsker.ɪ.faɪ.ɚ/
(also lawn scarifier)割草机，剪草机，梳草机
a tool with sharp points used for breaking up and removing unwanted grass or plants that are covering the surface of a lawn (= an area of grass)
Get rid of dead grass with a rake or scarifier. 用耙子或剪草机除去死草。
（农用）松土机;（道路工程用）翻路机
a machine with sharp points used for breaking up the surface of the ground or a road
Scarifiers can be used to loosen compacted surfaces or to break up rocky or frozen ground. 翻路机可用来松动压实的地面，也可用来打碎多石或冰冻的地面。
- More examples
- A scarifier removes excess material and allows your grass room to breathe.
- Scarify the lawn vigorously by raking in two directions with a rake or scarifier.
- The scarifier is for use with an asphalt concrete roadway refinisher.
- A scarifier attachment is mounted behind the vehicle.