verb (used with object), i·on·ized, i·on·iz·ing.
verb (used without object), i·on·ized, i·on·iz·ing.
Examples from the Web for ionize
Organic compounds, on the other hand, ionize only very slowly, if at all.The Chemistry of Plant Life|Roscoe Wilfred Thatcher
Certain ultra-violet rays also ionize the air and cause the formation of ozone.Artificial Light|M. Luckiesh
Second, the upper atmosphere of Eisberg was pretty much pure hydrogen, which is somewhat easier to ionize than oxygen or nitrogen.Unwise Child|Gordon Randall Garrett