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blotch

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blotch

[bloch]
–noun
1. a large, irregular spot or blot.
2. Plant Pathology.
a. a diseased, discolored spot or area on a plant.
b. a disease so characterized, usually accompanied by cankers and lesions.
3. a skin eruption; blemish.
–verb (used with object)
4. to mark with blotches; blot, spot, or blur: The floor of the forest was blotched with cool, dark moss.
–adjective
5. Textiles. of or pertaining to blotch printing, or to the colored ground produced by this process.

Origin:
1595–1605; perh. b. blot 1 + botch 2


1. splotch, mark, blemish, stain.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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blotch   (blŏch)   
n.  
  1. A spot or blot; a splotch.

  2. A discoloration on the skin; a blemish.

  3. Any of several plant diseases caused by fungi and resulting in brown or black dead areas on leaves or fruit.

tr. & intr.v.   blotched, blotch·ing, blotch·es
To mark or become marked with blotches.

[Probably blend of blot1 and botch.]
blotch'i·ly adv., blotch'i·ness n., blotch'y adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

blotch 
1604, perhaps a blend of blot and botch or patch.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: blotch
Pronunciation: 'bläch
Function: noun
: a blemished patch on the skin blotches> —blotch transitive verbblotchy /-E/ adjective
Encyclopedia

blotch

plant disease characterized by splotchy black stain or coating on leaves, stems, and fruit, composed of dark fungal threads (Capnodium, Fumago, and Scorias species) that grow in flowing sap or on honeydew excreted by aphids and other sucking insects. The condition is unsightly but usually not harmful. Control includes spraying or dusting for sucking insects, washing off sticky coatings of sap or honeydew on plant surfaces, and avoiding the wounding of plants.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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