hóng​wài​xiàn

infrared

红外线 紅外線 hóng​wài​xiàn
infrared
infrared ray; invisible electromagnetic radiation with a wavelength longer than visible red light but shorter than microwaves, often used for medical treatment, communication, and detection

Frequency

Movie subtitles
2.18 per million appears in 1% of films
Written text
2.45 per million

Cross-References

Classifier

Same as

Sources