acetic acid

Từ điển Oxford Advanced Learner 8th

acet·ic acid BrE [əˌsiːtɪk ˈæsɪd] NAmE [əˌsiːtɪk ˈæsɪd] noun uncountable
the acid in ↑vinegar that gives it its taste and smell

Word Origin:
[acetic acid] late 18th cent.: acetic from French acétique, from Latin acetum ‘vinegar’.