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nit

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nit

1[nit]
–noun
1. the egg of a parasitic insect, esp. of a louse, often attached to a hair or a fiber of clothing.
2. the young of such an insect.

Origin:
bef. 900; ME nite, OE hnitu, c. D neet, G Niss, Norw nit

nit

2[nit]
–noun Physics.
a unit of luminous intensity equal to one candela per square meter. Abbreviation: nt

Origin:
1950–55; extracted from L nitor brightness; see nitid, -or 1

nit

3[nit]
–noun Chiefly British.
a nitwit.

Origin:
by shortening
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To nit
nit 1   (nĭt)   
n.  The egg or young of a parasitic insect, such as a louse.

[Middle English, from Old English hnitu.]
nit'ty adj.
nit 2   (nĭt)   
n.  A unit of illuminative brightness equal to one candle per square meter, measured perpendicular to the rays of the source.

[From Latin nitor, brightness, from nitēre, to shine.]
NIT  
abbr.  
  1. National Intelligence Test

  2. National Invitational Tournament

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Word Origin & History

nit 
O.E. hnitu "louse egg, nit," from P.Gmc. *khnito (cf. Norw. nit, M.Du. nete, Du. neet, M.H.G. niz, Ger. Niß), related to Rus., Pol. gnida, Czech knida, Gk. konid-. Verb nit-pick is first attested 1962, from earlier nitpicker "pedantic critic" (1951).
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: nit
Pronunciation: 'nit
Function: noun
: the egg of a louse or other parasitic insect; also : the insect itself when young
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

nit (nĭt)
n.
The egg or young of a parasitic insect, such as a louse.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Abbreviations & Acronyms
NIT
  1. National Intelligence Test

  2. National Invitational Tournament

The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
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