Definitions

1. verb

to treat a gas with ozone to purify or disinfect it

“The hospital used ozone generators to ozonise the air in the operating theater.”

2. verb

to add ozone to (a substance)

“The researchers ozonised the water to remove bacteria and other impurities.”

3. verb

to subject (something) to ozone, especially to make it more reactive

“The chemists ozonised the molecule to study its reactivity.”