To remove resin from something; to treat material to eliminate or reduce its resin content.
From de- (remove) + resinize (to treat with resin). Similar to deresinate, this variant form appears in technical and industrial chemistry literature describing resin extraction or reduction processes.
Both 'deresinate' and 'deresinize' mean the same thing—a reminder that English loves giving us multiple ways to say things, especially in technical fields where different industries prefer different terms.
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