I. ˈkambrēən, -ˈā- adjective
Usage: usually capitalized
Etymology: Cambria Wales (from Medieval Latin Cambria, Cumbria, perhaps from — assumed — Old Welsh combrog fellow countryman, Welshman) + English -an — more at cymry
1. : of or relating to Cambria : welsh
2. or cambric -brik, -ēk : of or relating to the earliest geologic period of the Paleozoic era and the lowest system of Paleozoic rocks whose formations (as conglomerates, sandstones, shales, and limestones) indicating conditions of shallow sea water, a far from uniform climate, and a period of great duration show scarcely recognizable plant fossils but record every great animal type except the vertebrate, trilobites being one of the most characteristic groups — see geologic time table
II. noun
( -s )
1. capitalized : a native or resident of Cambria : welshman
2. usually capitalized : the Cambrian period or system of rocks