NIACIN
Meaning of NIACIN in English
/ ˈnaɪəsɪn; NAmE / (also ˌnico·tin·ic ˈacid ) noun
[ U ] a vitamin of the B group that is found in foods such as milk and meat
Oxford Advanced Learner's English Dictionary.
Оксфордский английский словарь для изучающик язык на продвинутом уровне.
2005