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Lies! It's not radiation-free because light and heat was generated (and thus radiated)!

When it's mentioned in the "potentially harmful" scope, "radiation" is shorthand for ionizing radiation.

Yet there's no shorthand for the "potentially beneficial" scope...

I just hate that the general public connotes "radiation" with "harmful".

> Yet there's no shorthand for the "potentially beneficial" scope...

Yes there is. The main word is "light". And also "warmth" or "radio waves".

... and X-rays, radiotherapy, scintigraphy...

Still, the fact is that "radiation", for the layman, means nocive radioactivity.