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Definition of lactic

lactic

/ˈlæk.tɪk/
lac · tic
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lactic Lexical Profile

lactic Game Scores & Validity

• adjective

1

Relating to or designating lactic acid or its chemical derivatives, especially as produced in muscle tissue during strenuous physical exercise.

Example

"A gentle cooldown jog after a sprint helps the body clear lactic byproducts from fatigued muscles."

2

Relating to, obtained from, or involving milk, especially sour milk or its fermentation.

Example

"The cheesemaker carefully monitored the lactic fermentation process to ensure the curds developed the desired tang."

Synonyms
View all synonyms for lactic

• Rhymes for lactic

• Nearby Words

lacrosse
lactate
lactation
lactic
lactose
lacy
lad

Word Origin & Etymology

Borrowed in the late 18th century from French lactique, coined by the chemist Antoine Lavoisier from Latin lac (stem lact-), meaning 'milk', because lactic acid was first isolated from sour milk.

Cite this Entry

Wordmom. (2026). Definition of Lactic. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/lactic
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