1. Of or relating to Wales; Welsh.
2. Of or belonging to the geologic time, system of rocks, or sedimentary deposits of the first period of the Paleozoic Era, characterized by desert land areas, warm seas, and rapid early diversification of marine life resulting in the rise of almost all modern animal phyla.

1. A Welshman or Welshwoman.
2. The Cambrian Period.

[From Medieval Latin Cambria, Wales, alteration of Cumbria, from Welsh Cymry. Adj., sense 2, and n., sense 2, after CAMBRIA.]

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.