lactic Meaning, Definition & Usage

  1. adjective of or relating to or obtained from milk (especially sour milk or whey)
    • lactic acid
    • lactic fermentation

WordNet

Lac"tic adjective
Etymology
L. lac, lactis, milk: cf. F. lactique. See Lacteal, and cf. Galactic.
Definitions
  1. (Physiol. Chem.) Of or pertaining to milk; procured from sour milk or whey; as, lactic acid; lactic fermentation, etc. the three are D-lactic acid, L-lactic acid, and DL-lactic acid, the third being merely an equimolar mixture of the first two.

Webster 1913