transitive verb. To treat or combine with a halogen.

To introduce a halogen atom into (a compound); especially, to substitute a halogen for hydrogen in an organic compound.

verb. To treat with, or react with, a halogen or a hydrohalic acid.

"For that matter, it would have been too late even when the discovery was made and action taken, if the industry had used primarily bromine, rather than chlorine, to halogenate fluorocarbon compounds for market purposes."

brominate  chlorinate  fluorinate  iodinate  

halogenation  

halogenated  halogenating