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lac1

[lak] /læk/
noun
1.
a resinous substance deposited on the twigs of various trees in southern Asia by the female of the lac insect: used in the manufacture of varnishes, sealing wax, etc., and in the production of a red coloring matter.
Compare shellac (defs 1, 2).
Origin of lac1
1545-1555
1545-55; < Hindi lākhSanskrit lākṣā

lac2

[lahk] /lɑk/
noun
1.
(in India)
2.
the sum of 100,000, especially of rupees. The usual punctuation for sums of Indian money above a lac is with a comma after the number of lacs: Rs. 30,52,000 (i.e., 30 lacs and 52,000) instead of 3,052,000.
3.
an indefinitely large number.
Also, lakh.
Origin
1605-15; < Hindi lākhSanskrit lakṣa

lac3

[lak] /læk/
noun
1.
(in prescriptions) milk.
Origin
< Latin

LAC

1.
leading aircraftsman.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for lac

lac1

/læk/
noun
1.
a resinous substance secreted by certain lac insects, used in the manufacture of shellac
Word Origin
C16: from Dutch lak or French laque, from Hindi lākh resin, ultimately from Sanskrit lākshā

lac2

/lɑːk/
noun
1.
a variant spelling of lakh

LAC

abbreviation
1.
leading aircraftman

lakh

/lɑːk/
noun
1.
(in India and Pakistan) the number 100 000, esp when referring to this sum of rupees
Word Origin
C17: from Hindi lākh, ultimately from Sanskrit lakshā a sign
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 lac
n.

"red resinous substance," 1550s (perhaps via Middle French lacce), earlier lacca (early 15c., from Medieval Latin form lacca), from Persian lak, from Hindi lakh (Prakrit lakkha), from Sanskrit laksha "red dye," which according to Klein is literally "one hundred thousand," in reference to the insects that gather in great numbers on the trees and make the resin run out. But others say lakh is an alteration of Sanskrit rakh, from an IE root word for "color, dye" [Watkins]. Still another guess is that Sanskrit laksha is related to English lax, lox "salmon," and the substance was perhaps originally so called from being somewhat the color of salmon [Barnhart].

Online Etymology Dictionary, © 2010 Douglas Harper
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lac in Medicine

lac (lāk)
n.

  1. Milk.

  2. A whitish, milky looking liquid.

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

LAC

  1. Lacerta (constellation)
  2. LaCrosse encephalitis
  3. large area coverage
  4. local area coverage
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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5
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