We don't have synonyms for bone oil yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are rose oil, pine oil and honey oil.
(n) :
An oil obtained by heating bones (as in the manufacture of bone black), remarkable for containing the nitrogenous bases, pyridine and quinoline, and their derivatives.
(n) :
An oil obtained by heating bones (as in the manufacture of bone black), remarkable for containing the nitrogenous bases, pyridine and quinoline, and their derivatives.