Definicija: The removal of brush using mechanical means, either by cutting manually or by using machinery for crushing, rolling, flailing, or chipping it, or by chemical means or a combination of these.

Definicija: Odstranitev grmičevja z mehanskimi in kemičnimi sredstvi ali kombinacijo obeh, bodisi ročno ali z uporabo mehanizacije, s tretjem, obračanjem, mlatenjem ali trganjem.