Pis"sas*phalt (?), n. [L. pissasphaltus, Gr. ; pitch + asphalt: cf. F. pissasphalte.] Min.
Earth pitch; a soft, black bitumen of the consistence of tar, and of a strong smell. It is inflammable, and intermediate between petroleum and asphalt.
[Written also
pisasphaltum,
pisasphalt, etc.]
© Webster 1913.