wai6 syun1胃酸
Jyutpingwai6 syun1
Yalewaih syūn
Definition
Stomach acid; the acidic fluid in the stomach, primarily consisting of hydrochloric acid.
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How it's used
Refers specifically to the digestive juices in the stomach, often appearing in medical or health contexts. It is frequently paired with verbs like 倒流 to describe the sensation of acid rising into the esophagus. While it is a technical term, it is commonly used by laypeople when describing indigestion or heartburn to a doctor or pharmacist.
Examples
It is very uncomfortable to have acid reflux after eating.
Related words
Common mistake
Do not confuse this with the general feeling of nausea or stomach upset, which is usually described as 胃唔舒服 or 胃痛. Using 胃酸 to describe any kind of general stomach pain is imprecise.
Grammar color guide
Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector
Grammar guides
- NegationHow to say no, not, didn't, and don't in Cantonese. The four main negation words and when to use each one.
- Numbers and moneyCounting, talking about money, and asking how much things cost. Includes the two words for two and the everyday words for dollars and cents.
- Aspect markersCantonese has no tenses, but it does have aspect markers. Learn how zo2, gwo3, gan2, and hai2 dou6 show completion, experience, and ongoing action.



