a brand name for a substance consisting of fused alumina, used chiefly as an abrasive and as a refractory.
Emery, carborundum and Alundum wheels are developed from the grindstone of the distant past.
Inventors at Work George Iles
trademark a hard material composed of fused alumina, used as an abrasive and a refractory
a mineral, hydrous sulfate of aluminum, Al 2 (SO 4) 3 ⋅18H 2 O, occurring as a white, fibrous crust on quarry or mine walls.
a passageway, as the walk along one side of a cloister.
Zoology. covered with minute cracks or wrinkles and having a pale, leathery-brown color. having the color of soft brown leather. Historical Examples The head is a light yellow in all specimens I found, not alutaceous as Schw. The Mushroom, Edible and Otherwise M. E. Hard Its habitat, its reddish or alutaceous cap, and its paler […]
alush one of the places, the last before Rephidim, at which the Hebrews rested on their way to Sinai (Num. 33:13, 14). It was probably situated on the shore of the Red Sea. Historical Examples The sufferers themselves urged a fresh start for the spring at alush. Joshua, Complete Georg Ebers