Definition of 自然放射線 (しぜんほうしゃせん)
しぜんほうしゃせん
自然放射線
しぜんほうしゃせん
shizenhoushasen
noun
•
background radiation
Related Kanji
| 自 | oneself |
| 然 | sort of thing, so, if so, in that case, well |
| 放 | set free, release, fire, shoot, emit, banish, liberate |
| 射 | shoot, shine into, onto, archery |
| 線 | line, track |