transitive verb. To add one or more alkyl groups to (a compound).

To introduce an alkyl in place of a hydrogen atom.

verb. To add one or more alkyl groups to a compound, especially by reacting with an alkylating agent

"It is not technically possible to produce only alkylate in a oil refinery and not legally permitted for California refineries to import alkylate and export FCC naphtha and Platformate/CNR naphtha to other states due to “antidumping” laws in environmental legislation."

alkylated  alkylation