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 ?
To make them scrub off their own paint would teach them a lesson.
1 WITH a stiff broom, clear any obvious debris from paths and steps, then scrub off any algae that's started to grow.
Let them soak for several minutes, then scrub off the loosened debris with a stiff-bristled plastic brush.
Litter in the High Street, with vast quantities of chewing gum, creates a major challenge that our Care For Your Area teams are coping with using squads of litter pickers, costly litter bins and a hi-tech machine to scrub off the gum.
Of course, none did and it also took an age to scrub off the dye.
When it is almost dried into the skin, the therapist rolls and peels the scrub off, taking the dead skin off with it.
Most contain abrasive ingredients to scrub off stains on the tooth's outer layer; a few include bleaching agents.
The ultra-absorbent material keeps your gas hob clean without the need to scrub off stubborn burnt-on food.