1 [lak-teyt]
verb (used without object), lactated, lactating.
to produce milk.

1885–90; < Latin lactātus, past participle of lactāre to suckle. See lact-, -ate1 Unabridged


2 [lak-teyt]
noun Chemistry.
an ester or salt of lactic acid.

1785–95; lact(ic acid) + -ate2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
lactate1 (ˈlækteɪt)
an ester or salt of lactic acid
[C18: from lacto- + -ate1]

lactate2 (ˈlækteɪt)
(intr) (of mammals) to produce or secrete milk

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

"secrete milk from the breasts," 1889, back formation from lactation. Related: Lactating.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

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

lactate 2
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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American Heritage
Science Dictionary
lactate   (lāk'tāt')  Pronunciation Key 
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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Example sentences
Carbs break down into lactic acid in your muscles, which becomes lactate in the blood.
Calcium lactate has similar absorption as calcium carbonate, but is more expensive.
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