Having had lead removed; treated to eliminate lead contamination.
From 'delead' + '-ed' (past participle/adjective). Used as either a past participle or descriptive adjective for materials treated to remove lead.
Deleaded gasoline was actually marketed as 'unleaded' to consumers, but it's technically 'deleaded'—a brilliant marketing decision because 'unleaded' sounds cleaner than admitting they had to remove the poison.
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