红外

紅外

hóngwài

noun #16,160

Meanings

1 infrared (ray)

Characters

outside; beyond

Examples

HSK 5

红外线可以用来测量温度。

Hóngwàixiàn kěyǐ yònglái cèliáng wēndù.

Infrared rays can be used to measure temperature.

HSK 6

这个遥控器使用红外信号。

Zhège yáokòngqì shǐyòng hóngwài xìnhào.

This remote control uses infrared signals.

Tips

memory

红外 literally means 'beyond red' - infrared light is beyond the red end of the visible spectrum. Similarly, ultraviolet is 紫外 ('beyond purple').

Stroke Order

红 hóng

外 wài