'Train oil' definitions:

Definition of 'train oil'

From: WordNet
noun
A white to brown oil obtained from whale blubber; formerly used as an illuminant [syn: whale oil, train oil]

Definition of 'Train oil'

From: GCIDE
  • Train oil \Train" oil`\ (oil`). [D. or LG. traan train oil, blubber (cf. Dan. & Sw. tran, G. thran) + E. oil.] Oil procured from the blubber or fat of whales, by boiling. [1913 Webster]