sek6 jeoi5 si3 zi2石蕊試紙石蕊试纸
Jyutpingsek6 jeoi5 si3 zi2
Yalesehk yéuih si jí
Definition
Litmus paper; test paper used to measure pH, turning red with acid and blue with alkali.
neutralschoolother
How it's used
Primarily used in chemistry classrooms and laboratory settings, this term is a direct translation of the scientific tool. It is rarely encountered outside of academic contexts or specific technical discussions regarding pH levels.
Measure word
zoeng1張jēungExamples
This piece of litmus paper has turned red.
Related words
Common phrases
blue litmus paper
red litmus paper
Common mistake
Learners often mistakenly use this term to refer to any type of testing strip, but it specifically refers to the chemical indicator for acidity or alkalinity. For general testing strips like those for glucose or pregnancy, use the generic term 試紙 instead.
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.
