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.]