- a large, irregular spot or blot.
- Plant Pathology.
- a diseased, discolored spot or area on a plant.
- a disease so characterized, usually accompanied by cankers and lesions.
- a skin eruption; blemish.
- to mark with blotches; blot, spot, or blur: The floor of the forest was blotched with cool, dark moss.
- Textiles. of or relating to blotch printing, or to the colored ground produced by this process.
Origin of blotch
SynonymsSee more synonyms on Thesaurus.com
1. splotch, mark, blemish, stain.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for blotch
The lighthouse was a white dot and the fish shanties a blotch of brown.Keziah Coffin
Joseph C. Lincoln
The month was April, and the day was blithe, with no blotch in the sky.The Jucklins
There was indeed a blotch on one of the negatives, which I was assured was a spirit.Mystic London:
Charles Maurice Davies
With all the writer's care, however, he had not been able to avoid a blotch.
Mr. Blotch remained in the engine room throughout the journey.Local Color
Irvin S. Cobb
- an irregular spot or discoloration, esp a dark and relatively large one such as an ink stain
- to become or cause to become marked by such discoloration
- (intr) (of a pen or ink) to write or flow unevenly in blotches
C17: probably from botch, influenced by blot 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for blotch
c.1600, perhaps a blend of blot and botch or patch.
Online Etymology Dictionary, © 2010 Douglas Harper
- Any of several plant diseases caused by fungi and resulting in brown or black dead areas on leaves or fruit.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.