scrub

Definitions

General English

General Science

  • verb to remove sulfur and other pollutants from waste gases produced by power stations

Agriculture

  • noun an area of land covered with small trees and bushes

Computing

Military

  • noun vegetation consisting of small trees and bushes
  • noun an area of ground covered with scrub

Slang

  • noun defined in 2000 as ‘a useless and worthless male who has huge misconceptions of his own brilliance’, the word is part of the hip hop and rap lexicon. Busta is a synonym.
http://www.dictionarycentral.com/definition/scrub.html