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scour 1 (skour)
Share:
v. scoured, scour·ing, scours
v.tr.
1.
a. To clean, polish, or wash by scrubbing vigorously: scour a dirty oven.
b. To remove by scrubbing: scour grease from a pan.
2. To remove dirt or grease from (cloth or fibers) by means of a detergent.
3. To clean (wheat) before the milling process.
4. To clear (an area) by freeing of weeds or other vegetation.
5. To clear (a channel or pipe) by flushing.
v.intr.
1. To scrub something in order to clean or polish it.
2. To have diarrhea. Used of livestock.
n.
1. A scouring action or effect.
2. A place that has been scoured, as by flushing with water.
3. A cleansing agent for wool.
4. scours (used with a sing. or pl. verb) Diarrhea in livestock.

[Middle English scouren, from Middle Dutch scūren, from Old French escurer, from Late Latin excūrāre, to clean out : Latin ex-, ex-, Late Latin cūrāre, to clean (from Latin, to take care of, from cūra, care; see CURE).]

scourer n.

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2017 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 
scour 2 (skour)
Share:
v. scoured, scour·ing, scours
v.tr.
1. To search through or over thoroughly: The detective scoured the scene of the crime for clues.
2. To range over (an area) quickly and energetically.
v.intr.
1. To range over or about an area, especially in a search.
2. To move swiftly; scurry.

[Middle English scouren, to move swiftly, probably of Scandinavian origin; akin to Old Norse skūr, shower.]

scourer n.

The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2017 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
 

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