bone oil

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. the liquid portion of bone fat;
used as a lubricant and in leather manufacture
• Hypernyms:
animal oil
• Part Holonyms:
bone fat
2. dark-colored ill-smelling oil obtained by carbonizing bone;
used especially in sheep dips and in denaturing alcohol
• Syn:
Dippel's oil
• Hypernyms:
animal oil