A part
放射
Shown as a part of 1 word so far, read one way.
ほうしゃ 1 word
- 放射能ほうしゃのうradioactivity
放射能 · here “radiating, emitting”
Also written with 放射
These words contain the character in their spelling but show no breakdown that names it, so nothing is claimed about its role in them.