n. 25B6; noun DYSPEPSIA, heartburn, pyrosis, acidity, stomach ache; (an) upset stomach, (a) stomach upset; informal bellyache, tummy ache, collywobbles.
INDIGESTION
Meaning of INDIGESTION in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012