the world > the earth > earth sciences > theory of formation of earth > theorist > [noun] > violent disturbance (5)
One who holds the theory of catastrophism; opposed to uniformitarian. Also attributive.
Geology. One who holds that the great geological changes were produced by violent convulsions or upheavals; = catastrophist, n.
One who adopts the hypothesis of cataclysms in Geology; a ‘catastrophist’.
= catastrophist, n. rare.