fong3 se6 sing3放射性
Jyutpingfong3 se6 sing3
Yalefong seh sing
Definition
Radioactivity or radioactive properties.
neutralother
How it's used
Used primarily in scientific or news contexts to describe materials that emit ionizing radiation. While it functions as a noun, it is frequently used as an adjective by adding 嘅 or simply placing it before a noun. It carries a serious and technical tone, often appearing in discussions regarding nuclear energy or medical treatments.
Examples
These waste materials are radioactive.
Do you know that this element is radioactive?
Related words
Common phrases
radioactive material
radioactive waste
Common mistake
Learners sometimes confuse this with 輻射, which refers to the radiation itself rather than the property of being radioactive. Remember that 放射性 is the inherent quality of an object, whereas 輻射 is the energy being emitted.
Grammar color guide
Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector
Grammar guides
- TonesCantonese has six tones, and the tones can change in certain grammatical contexts. Learn the six tones and the rules for tone change.
- Time and datesClock time, days of the week, months, and years. The patterns you need to make plans and talk about when things happen.
- Modal verbsHow to say can, will, may, should, must, and want. The core modal verbs of Cantonese and the differences that trip up beginners.
