vulcanized oil

noun

: any of various brown or white elastic materials made from unsaturated fatty oils (as rape oil or linseed oil) by heating with sulfur or by reaction with sulfur monochloride and used chiefly in compounding rubber and in coatings

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!