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pestiferous

[pe-stif-er-uh s] /pɛˈstɪf ər əs/
adjective
1.
bringing or bearing disease.
3.
pernicious; evil.
4.
Informal. mischievous; troublesome or annoying.
Origin
late Middle English
1425-1475
1425-75; late Middle English < Latin pestiferus plague-bringing, equivalent to pesti- (stem of pestis) pest + -ferus -ferous
Related forms
pestiferously, adverb
pestiferousness, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for pestiferously

pestiferous

/pɛˈstɪfərəs/
adjective
1.
(informal) troublesome; irritating
2.
breeding, carrying, or spreading infectious disease
3.
corrupting; pernicious
Derived Forms
pestiferously, adverb
pestiferousness, noun
Word Origin
C16: from Latin pestifer, from pestis contagious disease, pest + ferre to bring
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 pestiferously

pestiferous

adj.

mid-15c., "mischievous, pernicious," figurative use of Latin pestiferus "that brings plague or destruction," variant of pestifer "bringing plague, destructive, noxious," from pestis "plague" (see pest) + ferre "carry" (see infer). Related: Pestiferously; pestiferousness.

Online Etymology Dictionary, © 2010 Douglas Harper
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pestiferously in Medicine

pestiferous pes·tif·er·ous (pě-stĭf'ər-əs)
adj.

  1. Producing or breeding infectious disease.

  2. Infected with or contaminated by an epidemic disease.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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