scrub

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Related to scrubbed: 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 classic literature ?
Coolly she had squatted on her hams, spat on his arm, and with her finger-tips scrubbed away the dirt of days and nights of muck and jungle that sullied the pristine whiteness of his skin.
When my floor was dirty, I rose early, and, setting all my furniture out of doors on the grass, bed and bedstead making but one budget, dashed water on the floor, and sprinkled white sand from the pond on it, and then with a broom scrubbed it clean and white; and by the time the villagers had broken their fast the morning sun had dried my house sufficiently to allow me to move in again, and my meditations were almost uninterupted.
In the little attic room Nancy swept and scrubbed vigorously, paying particular attention to the corners.
The floors were scrubbed to that extent, that you might have supposed the London blacks emancipated for ever, and gone out of the land for good.