Whale oil is oil obtained from the blubber of whales. Oil from the bowhead whale was sometimes known as train-oil, which comes from the Dutch word traan.
A bottle of whale oil
Whalers boiling blubber on the deck of their ship (1874 illustration)
United States whale oil and sperm oil imports in the 19th century
Try pots in Ilulissat, Greenland
An oil is any nonpolar chemical substance that is composed primarily of hydrocarbons and is hydrophobic and lipophilic. Oils are usually flammable and surface active. Most oils are unsaturated lipids that are liquid at room temperature.
A bottle of olive oil used in food
Synthetic motor oil