lac·​tic | \ˈlak-tik \

Definition of lactic 

1a : 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 sharp acidity of wild yeasts and lactic bacteria can make beers without backbone biting and sharp, but the rich notes of dark grain provide balancing depth. William Bostwick, WSJ, "Come Over to the Dark (Beer) Side," 23 Mar. 2018 But similar to how sprinters can only maintain their zip for short distances, fish can only rely on this process for a short time due to the buildup of lactic acid, which is dangerous in high concentrations. Jason Daley, Smithsonian, "How Do Goldfish Survive Winter? They Make Alcohol," 14 Aug. 2017 A secondary zeroing in occurs in the form of lactic acid, which is the by-product of muscle firing, or exercising. Mackenzie Wagoner, Vogue, "Here’s Why You Are a Mosquito Magnet," 10 July 2017 The bacteria begin chomping down on lactose, converting it to lactic acid. Jordan C. Axelson, Milwaukee Journal Sentinel, "In Wisconsin, we love our cheese curds. But how are they made? And why do they squeak?," 7 July 2017 Moisturize your feet at least twice a day (look for products that contain lactic acid or uric acid to keep callouses at bay), and pop on a pair of cotton socks. Amy Capetta, Woman's Day, "How to Solve Irritation from Head to Toe," 12 June 2017 The bacteria consume the lactose from the milk and excrete lactic acid and various flavor components. Allyson Reedy, The Denver Post, "Why do we love cheese? We count the ways with experts of the ooey-gooey goodness.," 18 Jan. 2017 The bacteria present on the surface of the cabbage leaves will ferment the vegetable’s natural sugars into lactic acid, creating sauerkraut. Consumer Reports, Washington Post, "Why fermented foods — sauerkraut, kimchi and yogurt — are good for your gut," 7 May 2017 Common active ingredients in pro-grade peels include glycolic, mandelic, salicylic, and lactic acids, along with trichloroacetic acid. Janell M. Hickman, SELF, "8 Dark Spot Treatments That Really Work, According to Dermatologists," 27 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'lactic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of lactic

1790, in the meaning defined at sense 1a

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The first known use of lactic was in 1790

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More Definitions for lactic


lac·​tic | \ˈlak-tik \

Medical Definition of lactic 

1a : of or relating to milk

b : obtained from sour milk or whey

2 : involving the production of lactic acid lactic fermentation

More from Merriam-Webster on lactic

See words that rhyme with lactic

Britannica English: Translation of lactic for Arabic Speakers

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