LACTIC ACID
Meaning of LACTIC ACID in English
lac ‧ tic ac ‧ id /ˌlæktɪk ˈæsəd/ BrE AmE noun [uncountable]
an acid produced by muscles after exercising and found in sour milk
Longman Dictionary of Contemporary English.
Longman - Словарь современного английского языка.
2012