phos·pha·tize [ fósfə tz ](past and past participlephos·pha·tized, present participlephos·pha·tiz·ing, 3rd person present singularphos·pha·tiz·es)
verb
Definition:
1. transitive verb treat something with phosphate: to treat something with phosphoric acid or with a phosphate, typically to protect ferrous metal against corrosion
2. transitive and intransitive verb change into phosphate: to convert something into a phosphate or phosphates, or undergo this process