Cambrian

(kămˈbrē-ən, kāmˈ-)

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. See Table at geologic time.

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