boiled oil

noun

: any fatty oil (such as linseed oil) whose drying properties have been improved by heating usually with driers (such as lead soaps)

also : any drying oil made by treating a raw oil with driers in the cold compare bodied oil

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

• More than 250,000 words that aren't in our free dictionary
• Expanded definitions, etymologies, and usage notes
• Advanced search features
• Ad free!