毫米 háomǐ millimeter
How to remember 毫米: 毫 fine hair + 米 rice = millimeter.
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How it is used
- Millimeter (mm) - 三毫米厚 (sān háomǐ hòu) 3 mm thick, 降雨量五十毫米 (jiàngyǔliàng wǔshí háomǐ) 50 mm of rainfall.
- A metric length unit; 毫 (milli-) + 米 (meter). Everyday for small measurements and rainfall.
- Part of the 毫 milli- family alongside 毫升, 毫克.