放射 fàngshè to radiate
to radiate; radioactive
How to remember 放射: 放 put + 射 to shoot = to radiate.
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How it is used
- To emit outward in rays - light, heat, or radiation: 放射性 (fàngshèxìng) radioactive, 放射线 (fàngshèxiàn) radiation/rays.
- Technical and physical; the everyday word for a lamp giving off light is 发出 or 散发. 放射 leans scientific/medical (X光放射).