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
The formula pairs 15% pure vitamin C with 10% hydroxy acids (specifically, glycolic and lactic) to gently exfoliate—making way for clearer, smoother skin sans blemishes, enlarged pores, and fine lines.
—
Kiana Murden, Vogue, 4 Mar. 2025
This legendary peel combines salicylic acid with AHAs—glycolic, mandelic, lactic, citric, and malic acids—for a treatment that’s effective, yet gentle enough to use daily.
—Emily Orofino, Vogue, 2 Apr. 2025
And last, there are the exfoliators to remove the pigment that’s already on your skin, such as glycolic, lactic, and salicylic acids.
—Deanna Pai, Glamour, 19 Feb. 2025
The hay created from this grass, Bertinelli explained, is naturally infused with lactic bacteria endemic to the area.
—Marcia Desanctis, Travel + Leisure, 19 Feb. 2025
See All Example Sentences for lactic
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Kiana Murden, Vogue, 4 Mar. 2025
This legendary peel combines salicylic acid with AHAs—glycolic, mandelic, lactic, citric, and malic acids—for a treatment that’s effective, yet gentle enough to use daily.
—Emily Orofino, Vogue, 2 Apr. 2025
And last, there are the exfoliators to remove the pigment that’s already on your skin, such as glycolic, lactic, and salicylic acids.
—Deanna Pai, Glamour, 19 Feb. 2025
The hay created from this grass, Bertinelli explained, is naturally infused with lactic bacteria endemic to the area.
—Marcia Desanctis, Travel + Leisure, 19 Feb. 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 22 Apr. 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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