[f. CATACLYSM + -IST.] One who adopts the hypothesis of cataclysms in Geology; a ‘catastrophist.’
1887. Athenæum, 24 Sept., 410/3. In 1865 the battle of the ‘Uniformitarians’ and ‘Cataclysmists,’ ‘Sub-aërialists’ and ‘Marinists,’ was still raging.
