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lactate1

[lak-teyt] /ˈlæk teɪt/
verb (used without object), lactated, lactating.
1.
to produce milk.
Origin
1885-1890
1885-90; < Latin lactātus, past participle of lactāre to suckle. See lact-, -ate1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for lactating

lactate1

/ˈlækteɪt/
noun
1.
an ester or salt of lactic acid
Word Origin
C18: from lacto- + -ate1

lactate2

/ˈlækteɪt/
verb
1.
(intransitive) (of mammals) to produce or secrete 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 lactating

lactate

v.

"secrete milk from the breasts," 1889, probably a back-formation from lactation. Related: Lactated; lactating.

n.

1794, from stem of lactic + -ate (1).

Online Etymology Dictionary, © 2010 Douglas Harper
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lactating in Medicine

lactate lac·tate1 (lāk'tāt')
v. lac·tat·ed, lac·tat·ing, lac·tates
To secrete or produce milk.

lactate 2
n.
A salt or an ester of lactic acid.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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lactating in Science
lactate
  (lāk'tāt')   
A salt or ester of lactic acid. Lactate is a product of fermentation and is produced during cellular respiration as glucose is broken down.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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