Definition of scrub noun from the Oxford Advanced Learner's Dictionary

     

    scrub

     noun
    noun
    BrE BrE//skrʌb//
     
    ; NAmE NAmE//skrʌb//
     
    Operations, Plants
     
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  1. 1[singular] an act of scrubbing something I've given the floor a good scrub.
  2. 2[uncountable] small bushes and trees The bird disappeared into the scrub. See related entries: Plants
  3. 3(also scrubland) [uncountable] an area of dry land covered with small bushes and trees
  4. 4scrubs [plural] (specialist) the special clothes worn by surgeons when they are doing medical operations Wordfinderamputate, anaesthetic, graft, operation, procedure, scalpel, scrubs, stitch, surgery, transplant See related entries: Operations
  5. Word Originnoun sense 1 and noun sense 4 late 16th cent.: probably from Middle Low German, Middle Dutch schrobben, schrubben. noun senses 2 to 3 late Middle English (in the sense ‘stunted tree’): variant of shrub.Extra examples The horses stood near a patch of scrub. The mountain was covered in scrub. The vegetation consisted of low scrub. miles of desert scrub I’ve given the floor a good scrub.
See the Oxford Advanced American Dictionary entry: scrub