\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.]