[bahy-too-muh-nuh s, -tyoo-, bi-]


resembling or containing bitumen: bituminous shale.

Origin of bituminous

1610–20; < Latin bitūminōsus, equivalent to bitūmin- (stem of bitūmen) bitumen + -ōsus -ous
Related formsnon·bi·tu·mi·nous, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for bituminous

midnight, dark, sable, ebony, obsidian, raven, inky, pitch-black, ebon, pitch-dark

Examples from the Web for bituminous

Historical Examples of bituminous

Word Origin and History for bituminous

1610s, from French bitumineux, from Latin bituminosus, from bitumen (see bitumen).

The Plain, wherein a black bituminous gurge Boiles out from under ground, the mouth of Hell. ["Paradise Lost," XII.41]
Online Etymology Dictionary, © 2010 Douglas Harper