( n. )
The doctrine that the geological changes in the earth's crust have been caused by the sudden action of violent physical causes; -- opposed to the doctrine of uniformism.
( n. )
The doctrine that the geological changes in the earth's crust have been caused by the sudden action of violent physical causes; -- opposed to the doctrine of uniformism.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012