Definition of bone oil
1 : a dark-colored ill-smelling oil obtained by carbonizing bones (as in making bone black) that contains hydrocarbons and many nitrogen compounds (such as pyrrole and pyridine bases) and is used especially in sheep dips and in denaturing alcohol —called also animal oil, Dippel's oil
2 : the liquid portion of bone fat used as a lubricant and in leather manufacture
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!
Seen and Heard
What made you want to look up bone oil? Please tell us where you read or heard it (including the quote, if possible).