noun see: hard Date: 1944 a stable relatively immobile area of the earth's crust that forms the nuclear mass of a continent or the central basin of an ocean, ~ic adjective
CRATON
Meaning of CRATON in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012