From WordNet (r) 3.0 (2006):
scrub
adj 1: (of domestic animals) not selectively bred
n 1: dense vegetation consisting of stunted trees or bushes
[syn: scrub, chaparral, bush]
2: the act of cleaning a surface by rubbing it with a brush and
soap and water [syn: scrub, scrubbing, scouring]
v 1: clean with hard rubbing; "She scrubbed his back" [syn:
scrub, scour]
2: wash thoroughly; "surgeons must scrub prior to an operation"
[syn: scrub, scrub up]
3: postpone indefinitely or annul something that was scheduled;
"Call off the engagement"; "cancel the dinner party"; "we had
to scrub our vacation plans"; "scratch that meeting--the
chair is ill" [syn: cancel, call off, scratch, scrub]