energy released in the form of particle or electromagnetic waves. common sources of radiation include radon gas, cosmic rays from outer space, medical x-rays, and energy given off by a radioisotope (unstable form of a chemical element that releases radiation as it breaks down and becomes more stable).
radiation
放射線.
be exposed to radiation
to be exposed to radiation
電磁放射.
insensitive to radiation
名詞の変化形:
|