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

Related Words

Compare: 被曝(ひばく) (radiation exposure)

Compare: 放射(ほうしゃ) (radiation)

Compare: 日光浴(にっこうよく) (sunbathing)

general

Added 2026.4.1 6:40 · Revised 2026.9.2 13:02

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