train oil

from WordNet (r) 3.0 (2006)

train oil
    n 1: a white to brown oil obtained from whale blubber; formerly
         used as an illuminant [syn: {whale oil}, {train oil}]

from The Collaborative International Dictionary of English v.0.48

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]