Devonian UK /dɛˈvəʊ.nɪ.ən/US /dɪˈvoʊ.ni.ən/adjective 2noun 1forms 1 adjective2 •Of a geologic period within the Paleozoic era; comprises lower, middle and upper epochs from about 415 to 360 million years ago. •(old-fashioned) Of or pertaining to the English region of Devon.This relic may, perhaps, serve, as a reminder of busier and more prosperous days on this Devonian railway byway. — 1950 noun1 •A native or inhabitant of the English region of Devon. formsDevonians
