transitive verbsul·fo·nat·ed, sul·fo·nat·ing, sul·fo·nates
- To introduce into (an organic compound) one or more sulfonic acid groups.
- To treat with sulfonic acid.
(third-person singular simple present sulfonates, present participle sulfonating, simple past and past participle sulfonated)
- To treat or react with a sulfonic acid, or to introduce such a group into a compound.