adjective Etymology: Perm, former province in eastern Russia Date: 1841 of, relating to, or being the last period of the Paleozoic era or the corresponding system of rocks, ~ noun
PERMIAN
Meaning of PERMIAN in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012