from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of numerous generally small, rounded, dark brown to green glassy objects that are composed of silicate glass and are thought to have been formed by the impact of a meteorite with the earth's surface.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A small, round, dark glassy object, composed of silicates, formed by the rapid cooling of meteorite fragments that hit the Earth.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. thought to derive from meteorites
Greek tēktos, molten (from tēkein, to melt) + -ite1.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek τηκτός ("molten"), from τήκειν (tēkein, "to melt"). (Wiktionary)