from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A prehistoric monument consisting of monoliths encircling a mound.
- n. A dolmen.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A dolmen or ancient underground tomb.
from the GNU version of the Collaborative International Dictionary of English
- n. A monument of rough stones composed of one or more large ones supported in a horizontal position upon others. They are found chiefly in countries inhabited by the ancient Celts, and are of a period anterior to the introduction of Christianity into these countries.
from The Century Dictionary and Cyclopedia
- n. In archœol., a structure consisting of a large, flat, unhewn stone resting horizontally upon three or more upright stones, of common occurrence in parts of Great Britain, as in Wales, Devonshire, Cornwall, and Ireland, and in Brittany and other parts of Europe.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a prehistoric megalithic tomb typically having two large upright stones and a capstone
Welsh : crom, feminine of crwm, arched + llech, stone.(American Heritage® Dictionary of the English Language, Fourth Edition)
Welsh, from crom (feminine of crwm ("bowed, arched")) + llech ("(flat) stone"). (Wiktionary)