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しがいせん
Meanings
Noun
1. ultraviolet rays; ultraviolet radiation
Alt. forms
紫し外がい線せん
99%
しがいせん
Pitch accent
し
がいせん
Used in: 2
Composed of
ultraviolet; UV
line; stripe; line (e.g. telephone line); wire; ray (e.g. X-ray); beam; line (e.g. of a railroad)
Used in vocabulary (2 in total)
ultraviolet treatment; ultraviolet light therapy
extreme ultraviolet
Examples (4 in total)
Ultraviolet rays are harmful to us.
Infrared and ultra-violet rays are types of light invisible to the human eye.
He put on sunglasses to protect his eyes from ultraviolet rays.
The sudden increase of ultraviolet rays made the researchers believe in the existence of ozone holes.