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8 Words That Are Older Than You Think

lactic

[lak-tik] /ˈlæk tɪk/
adjective
1.
of, pertaining to, or obtained from milk.
Origin
1780-1790
1780-90; lact- + -ic
Related forms
nonlactic, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for non lactic

lactic

/ˈlæktɪk/
adjective
1.
relating to or derived from milk
Word Origin
C18: from Latin lact-, lac milk
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 non lactic

lactic

adj.

"pertaining to milk," 1790 (in lactic acid; so called because it was obtained from sour milk), from French lactique, from Latin lactis, genitive of lac "milk" (see lactation) + French -ique.

Online Etymology Dictionary, © 2010 Douglas Harper
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non lactic in Medicine

lactic lac·tic (lāk'tĭk)
adj.
Of, relating to, or derived from milk.

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