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Definition
Acrylic; PMMA; a transparent, brittle plastic that is lighter and tougher than glass.
How it's used
Despite the name containing the character for glass, this material is a type of thermoplastic rather than a silicate. It is widely used in Hong Kong for signage, display cases, and protective screens because it is much more impact resistant and lighter than traditional glass. You will often hear it referred to simply as acrylic or by its brand name Plexiglas in professional or hardware store settings.
Measure word
faai3塊faiExamples
Related words
Common mistake
Do not confuse this with real glass, which is simply called 玻璃. Using the term for a window or a drinking glass made of actual silica will lead to confusion, as the properties of the two materials differ significantly in terms of heat resistance and scratch durability.
Grammar color guide
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.
