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The Collaborative International Dictionary of English v.0.48 (gcide)

Blight \Blight\ (bl[imac]t), v. t. [imp. & p. p. {Blighted}; p.
pr. & vb. n. {Blighting}.] [Perh. contr. from AS.
bl[imac]cettan to glitter, fr. the same root as E. bleak. The
meaning "to blight" comes in that case from to glitter,
hence, to be white or pale, grow pale, make pale, bleach. Cf.
{Bleach}, {Bleak}.]
1. To affect with blight; to blast; to prevent the growth and
fertility of.
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[This vapor] blasts vegetables, blights corn and
fruit, and is sometimes injurious even to man.
--Woodward.
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2. Hence: To destroy the happiness of; to ruin; to mar
essentially; to frustrate; as, to blight one's prospects.
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Seared in heart and lone and blighted. --Byron.
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Blight \Blight\, v. i.
To be affected by blight; to blast; as, this vine never
blights.
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Blight \Blight\, n.
1. Mildew; decay; anything nipping or blasting; -- applied as
a general name to various injuries or diseases of plants,
causing the whole or a part to wither, whether occasioned
by insects, fungi, or atmospheric influences.
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2. The act of blighting, or the state of being blighted; a
withering or mildewing, or a stoppage of growth in the
whole or a part of a plant, etc.
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3. That which frustrates one's plans or withers one's hopes;
that which impairs or destroys.
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A blight seemed to have fallen over our fortunes.
--Disraeli.
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4. (Zool.) A downy species of aphis, or plant louse,
destructive to fruit trees, infesting both the roots and
branches; -- also applied to several other injurious
insects.
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5. pl. A rashlike eruption on the human skin. [U. S.]
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