fu6 lei4 zi2負離子负离子
Jyutpingfu6 lei4 zi2
Yalefuh lèih jí
Definition
Anion (negative ion), or a chemical hair straightening treatment.
- technicalnegative ion; anion
- hair straightening treatment; thermal reconditioning
colloquialbodyother
How it's used
While technically referring to negative ions in chemistry, this term is almost exclusively used in daily life to describe professional salon hair straightening services. It implies a chemical process that breaks down hair bonds to make wavy or curly hair permanently straight. People often use it as a verb by adding the word 做 before it.
Measure word
ci3次chiExamples
I want to go to the hair salon to get a hair straightening treatment.
Your hair is so smooth after you got the ion treatment.
Related words
Common phrases
to get a hair straightening treatment
Common mistake
Do not confuse this with simple flat ironing, as the term specifically refers to a chemical treatment that lasts for months rather than a temporary styling session.
Grammar color guide
Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector
Grammar guides
- In 30 secondsThe whole language at a glance. No tenses, no plurals, six tones, sentence particles. Read this before you dive into any specific topic.
- ParticlesSentence particles add tone, emotion, and nuance. Learn the most common particles in Cantonese and how to use them.
- Possession (嘅)How to say my, your, and his, and how to link a describing word to a noun, all with the little word 嘅 (ge3).



