放射性(ほうしゃせい)

放射(ほうしゃ) (radiation) plus 〜性(せい) (property, -ness). Used attributively before a noun, where it behaves like a no-adjective.

Common collocations

• 放射性物質(ほうしゃせいぶっしつ): radioactive material
• 放射性廃棄物(ほうしゃせいはいきぶつ): radioactive waste
• 放射性同位体(ほうしゃせいどういたい): radioactive isotope

Similar words

• 放射性(ほうしゃせい): the property of being radioactive; mostly attached to a noun
• 放射能(ほうしゃのう): radioactivity as a quantity, and in everyday speech radioactive contamination (放射能(ほうしゃのう)を帯(お)びる, to become radioactive)
• 放射線(ほうしゃせん): the radiation itself (X-rays, gamma rays)