しがいせん
Meanings
Noun
Physics
1. ultraviolet rays; ultraviolet radiation; UV radiation
Pitch accent
し
がいせん
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 (4 in total)
ultraviolet treatment; ultraviolet light therapy
ultraviolet forecast; UV forecast
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.