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
Step one is all about exfoliation: Seven acids (including glycolic, lactic, and salicylic) sweep away dead skin cells, refine tone, and smooth lines, while chamomile and green tea help calm and protect.
—
Christa Joanna Lee, Allure, 28 Aug. 2025
The exfoliating lactic, glycolic, citric, and malic acids (all alpha hydroxy acids, or AHAs), plus jojoba spheres, gently buff skin to tackle texture.
—Jessica Kasparian, SELF, 22 Aug. 2025
Original price: $12.99 This Billie AHA Deodorant in Tidal Rose scent uses a pH-adjusting multi-acid blend (including lactic, mandelic and salicylic acids) to fight odors.
—Nora Colomer
May Earn A Commission If You Buy Through Our Referral Links. This Content Was Created By A Team That Works Independently From The Fox Newsroom., FOXNews.com, 4 Aug. 2025
AHAs, such as glycolic, lactic, and mandelic acid, exfoliate the skin’s surface and help improve texture and discoloration.
—Larry Stansbury, Essence, 14 July 2025
See All Example Sentences for lactic
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Christa Joanna Lee, Allure, 28 Aug. 2025
The exfoliating lactic, glycolic, citric, and malic acids (all alpha hydroxy acids, or AHAs), plus jojoba spheres, gently buff skin to tackle texture.
—Jessica Kasparian, SELF, 22 Aug. 2025
Original price: $12.99 This Billie AHA Deodorant in Tidal Rose scent uses a pH-adjusting multi-acid blend (including lactic, mandelic and salicylic acids) to fight odors.
—Nora Colomer
May Earn A Commission If You Buy Through Our Referral Links. This Content Was Created By A Team That Works Independently From The Fox Newsroom., FOXNews.com, 4 Aug. 2025
AHAs, such as glycolic, lactic, and mandelic acid, exfoliate the skin’s surface and help improve texture and discoloration.
—Larry Stansbury, Essence, 14 July 2025
See All Example Sentences for lactic
Cite this Entry
“Lactic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lactic. Accessed 17 Sep. 2025.
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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