scrub

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Related to scrub off: scrubbed up

scrub

1. 
a. vegetation consisting of stunted trees, bushes, and other plants growing in an arid area
b. (as modifier): scrub vegetation
2. an area of arid land covered with such vegetation
3. 
a. an animal of inferior breeding or condition
b. (as modifier): a scrub bull

Scrub

 

thickets of xerophytic, mainly evergreen shrubs found in arid regions of Australia. The shrubs reach a height of 2 m. Prevailing species are scrub eucalyptus, acacia, casuarina, and stunted shrubs of the families Fabaceae and Myrtaceae. The vegetation is characterized by xerophytic structure. The stiff foliage is generally gray-green with a waxy bloom; often there are phyllodes or thorns instead of leaves. The herbaceous covering is poorly developed, consisting of tufted grasses, annual strawflowers, saltworts, and some succulents.

In the most arid regions scrub eucalyptus is common (malee scrub). Regions having an annual precipitation of 150–250 mm are marked by a predominance of various acacia species (mulga scrub). In the tropical and somewhat more humid zone, brigalow acacia predominates, and sometimes eucalyptus and bottle trees are encountered (brigalow scrub).

Scrublands are also found in Africa.

scrub

[skrəb]
(aerospace engineering)
To cancel a scheduled firing, either before or during countdown.
(agriculture)
An inferior animal of nondescript breeding.
(computer science)
To examine a large amount of data and eliminate duplicate or unneeded items.
(ecology)
A tract of land covered with a generally thick growth of dwarf or stunted trees and shrubs and a poor soil.

scrub

The term has various meanings depending on context, but typically deals with erasing or cleaning up data. See data scrubbing, memory scrubbing and audio scrubbing.
References in periodicals archive ?
North Liverpool residents have called for anti-social yobs to be ordered to pick up litter and scrub off graffiti.
Sharp brakes scrub off the speed quickly and the punchy engine is sweet around town.
It said: "Female staff are told to scrub off excess make-up and men with stubble are sent home to shave."
Guards on buses carried soap and water to immediately scrub off make-up.
1 WITH a stiff broom, clear any obvious debris from paths and steps, then scrub off any algae that's started to grow.
It will do you as much good as a session at the gym as you use a stiff yard broom to scrub off any surface algae or other ugly deposits.
Scrub off all loose debris, dirt or growth to reveal a pristine surface beneath.
Since taking over as Social Security Secretary two years ago, the bravest thing that Brother Darling has done is scrub off his downy white beard.