from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A black, viscous natural bitumen.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. thick mineral pitch
- n. mineral tar
from the GNU version of the Collaborative International Dictionary of English
- n. A variety of bitumen, viscid and tenacious, like pitch, unctuous to the touch, and exhaling a bituminous odor.
- n. Mortar.
from The Century Dictionary and Cyclopedia
- n. A bituminous substance midway in consistency between asphaltum and petroleum.
- n. Haeckel's term for the gelatinous ground-substance or mesoglcea and contained cells of various kinds, which forms the skeletogenous layer in sponges.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a thick black tar intermediate between petroleum and asphalt
Middle English malthe, from Latin maltha, from Greek, a mixture of wax and pitch; see mel-1 in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
Ancient Greek μάλθα (máltha) (Wiktionary)