[as-fawl-teen or, esp. British, -fal-]
- any of the constituents of a bitumen, as asphalt, that are insoluble in pentane, hexane, or naphthalene.
Origin of asphaltene
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for asphaltene
According to others, asphaltum consists almost entirely of asphaltene.