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blight

[blahyt] /blaɪt/
noun
1.
Plant Pathology.
  1. the rapid and extensive discoloration, wilting, and death of plant tissues.
  2. a disease so characterized.
2.
any cause of impairment, destruction, ruin, or frustration:
Extravagance was the blight of the family.
3.
the state or result of being blighted or deteriorated; dilapidation; decay:
urban blight.
verb (used with object)
4.
to cause to wither or decay; blast:
Frost blighted the crops.
5.
to destroy; ruin; frustrate:
Illness blighted his hopes.
verb (used without object)
6.
to suffer blight.
Origin
1605-1615
1605-15; of uncertain origin
Related forms
blightingly, adverb
unblighted, adjective
unblightedly, adverb
unblightedness, noun
Synonyms
2. curse, plague, scourge, bane.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for blights
  • Accordingly, many diseases that primarily exhibit this symptom are called blights.
British Dictionary definitions for blights

blight

/blaɪt/
noun
1.
any plant disease characterized by withering and shrivelling without rotting See also potato blight
2.
any factor, such as bacterial attack or air pollution, that causes the symptoms of blight in plants
3.
a person or thing that mars or prevents growth, improvement, or prosperity
4.
an ugly urban district
5.
the state or condition of being blighted or spoilt
verb
6.
to cause or suffer a blight
7.
(transitive) to frustrate or disappoint
8.
(transitive) to spoil; destroy
Word Origin
C17: perhaps related to Old English blǣce rash; compare bleach
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
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Word Origin and History for blights
blight
1610s, origin obscure, apparently it emerged into literary speech from the talk of gardeners and farmers, perhaps ult. from O.E. blæce, blæcðu, a scrofulous skin condition and/or from O.N. blikna "become pale." Used in a general way of agricultural diseases, sometimes with suggestion of "invisible baleful influence;" hence figurative sense of "anything which withers hopes or prospects or checks prosperity" (1852). The verb in this sense is from 1712. Hence slang blighter.
Online Etymology Dictionary, © 2010 Douglas Harper
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blights in Science
blight
  (blīt)   
  1. Any of numerous plant diseases that cause leaves, stems, fruits, and tissues to wither and die. Rust, mildew, and smut are blights.

  2. The bacterium, fungus, or virus that causes such a disease.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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