照射(しょうしゃ)

しょうしゃ
noun
irradiation; exposure to light or radiation
1. irradiation; beam exposure; shining light on
The act of directing light, radiation, or other energy beams onto a target. Used in medical, scientific, and general contexts.
レーザーを照射(しょうしゃ)する。
To irradiate with a laser.
紫外線(しがいせん)の照射(しょうしゃ)で殺菌(さっきん)する。
To sterilize by exposure to ultraviolet light.
放射線(ほうしゃせん)照射(しょうしゃ)による治療(ちりょう)は副作用(ふくさよう)をともなうことがある。
Treatment by radiation exposure can have side effects.

Composed of 照(しょう) (to shine) + 射(しゃ) (to emit, shoot). A technical term commonly used in medicine (radiation therapy), science (UV irradiation), and technology (laser applications). The verb form is 照射(しょうしゃ)する.

COMMON COLLOCATIONS:

  • 放射線(ほうしゃせん)照射(しょうしゃ): radiation exposure; radiotherapy
  • レーザー照射(しょうしゃ): laser irradiation
  • 紫外線(しがいせん)照射(しょうしゃ): UV irradiation
  • 照射(しょうしゃ)量(りょう): dosage; amount of irradiation

SIMILAR WORDS:

  • 被曝(ひばく): radiation exposure (involuntary) — implies being exposed to radiation, often harmful
  • 放射(ほうしゃ): radiation; emission — the act of radiating energy outward
  • 日光浴(にっこうよく): sunbathing — natural exposure to sunlight
general
Added 2026.4.1 6:40
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