Actinic ray and Nonparticulate radiation

Actinic ray noun - Electromagnetic radiation that can produce photochemical reactions.

Nonparticulate radiation and actinic ray are semantically related. In some cases you can use "Nonparticulate radiation" instead a noun phrase "Actinic ray".

Nonparticulate radiation noun - Radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge.

Actinic ray and nonparticulate radiation are semantically related. Sometimes you can replace phrase "Actinic ray" with "Nonparticulate radiation", this phrases are similar.