1
a
: of or relating to milk
b
: obtained from sour milk or whey
2
: involving the production of lactic acid
Examples of lactic in a Sentence
Recent Examples on the Web
Specifically, fermentation produces lactic and acetic acids, which slow starch absorption in the digestive tract, according to Ehsani.
—
Kirsten Nunez, Martha Stewart, 14 June 2026
During fermentation, sourdough develops organic acids, such as lactic and acetic, that help slow the rate at which starch is broken down and absorbed.
—Jillian Kubala, Health, 11 June 2026
With a bright green, mint-scented formula, Tata Harper’s Clarifying Cleanser stars prickly pear enzymes, willow bark extract, lactic, citric, and salicylic acids to speed up skin cell turnover and balance oil production.
—Sarah Felbin, Allure, 20 May 2026
The dish had hardly a hint of sweetness at all beyond the butter’s lactic tang.
—Helen Rosner, New Yorker, 10 May 2026
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Kirsten Nunez, Martha Stewart, 14 June 2026
During fermentation, sourdough develops organic acids, such as lactic and acetic, that help slow the rate at which starch is broken down and absorbed.
—Jillian Kubala, Health, 11 June 2026
With a bright green, mint-scented formula, Tata Harper’s Clarifying Cleanser stars prickly pear enzymes, willow bark extract, lactic, citric, and salicylic acids to speed up skin cell turnover and balance oil production.
—Sarah Felbin, Allure, 20 May 2026
The dish had hardly a hint of sweetness at all beyond the butter’s lactic tang.
—Helen Rosner, New Yorker, 10 May 2026
See All Example Sentences for lactic
Cite this Entry
“Lactic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lactic. Accessed 19 Jun. 2026.
Copy CitationMedical Definition
lactic
adjective
lac·tic
ˈlak-tik 
1
a
: of or relating to milk
b
: obtained from sour milk or whey
2
: involving the production of lactic acid
lactic fermentation
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