Definition of scour
transitive verb
1 a
:to rub hard especially with a rough material for cleansing
b
:to remove by rubbing hard and washing
2
archaic
:to clear (a region) of enemies or outlaws
3
:to clean by purging :purge
4
:to remove dirt and debris from (something, such as a pipe or ditch)
5
:to free from foreign matter or impurities by or as if by washing
- scour wool
6
:to clear, dig, or remove by or as if by a powerful current of water
intransitive verb
1
:to perform a process of scouring
2
:to suffer from diarrhea or dysentery
3
:to become clean and bright by rubbing
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