Copyright © 2026 Kotomora. All Rights Reserved.
放射 (ほうしゃ) Japanese meaning | Kotomora
Common word JLPT N1 Freq. Frequency Top 5,000 Conjugation Meanings 1
noun, noun or participle which takes 'suru', transitive verb
radiation ; emission ; radiating
Used especially in scientific or technical contexts for energy, particles, heat, light, or waves being emitted outward; as a する-verb it is transitive, as in 熱を放射する.
ぱ
が
放ほう
射しゃ
さ
れる
。
Radio waves are emitted from the antenna.
Similar words 放ほう 射しゃ 線せん Refers to radiation as rays or particles; 放射 is the act or process of emitting them.
放ほう 射しゃ 能のう Means radioactivity, the ability of a substance to emit radiation; it is not the same as the act of 放射.
発はっ 射しゃ Means launching, firing, or shooting something such as a missile or bullet; 放射 is emission or radiation outward, often of energy or waves.
Etymology A Sino-Japanese compound written with 放, associated with releasing or sending out, and 射, associated with shooting or emitting. The spelling transparently matches the modern meaning, but this is a component explanation rather than a detailed historical derivation.
