Etymology
Advertisement

lactic (adj.)

1790, "procured from milk," in the chemical name lactic acid, which is so called because it was obtained from sour milk. From French lactique, from Latin lactis, genitive of lac "milk" (from PIE root *g(a)lag- "milk.") + French -ique (see -ic).

updated on September 19, 2017

Advertisement
Advertisement
Definitions of lactic from WordNet

lactic (adj.)
of or relating to or obtained from milk (especially sour milk or whey);
lactic fermentation
lactic acid
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.