Simple Definition of lactic acid

from our Learner's Dictionary

lactic acid

noun

ˈlæktɪk-
technical : a chemical produced by the body in your muscles during exercise

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“Lactic acid.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/lactic%20acid. Accessed 23 Jun. 2026.

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