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赤せき外がい線せん
Meanings
Noun
1. infrared rays; infrared radiation
Kanji used
赤
red
外
outside
線
line
Pitch accent
せ
きがいせん
Top 28900
Used in: 338
Composed of
infrared
line; stripe; line (e.g. telephone line); wire; ray (e.g. X-ray); beam; line (e.g. of a railroad)
Used in vocabulary (6 in total)
infrared data communication
infrared sensor
infrared photography
3 more...
Examples (2 in total)
Our eyes can't see infrared light.
Infrared and ultra-violet rays are types of light invisible to the human eye.