In physical chemistry, not separating a dissolved electrolyte into ions: said of a solvent.
The Century Dictionary (Public Domain)
Use "non-ionizing" in a sentence
"The best response I found was from Kenneth R. Foster, a Professor of Bioengineering at the University of Pennsylvania whose own research is focused on the biomedical applications and health effects of non-ionizing electromagnetic fields — the kind of fields produced by cell phone towers."
"Yeah, while she's certainly got a risk of breast cancer from being a person with breasts, microwaves are non-ionizing radiation, and thus shouldn't increase her cancer risk."
"Cellphones emit non-ionizing radiation, which has enough energy to cause atoms in a molecule to vibrate, but not enough to remove electrons."