a. [f. prec. + -AL: cf. abysmal.] = CATACLYSMIC.

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1857.  Page, Adv. Text-bk. Geol., xviii. (1876), 337. It is never cataclysmal save over the most partial and isolated tracts.

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1862.  D. Wilson, Preh. Man (1864), I. iii. 50. I could detect nothing … indicating cataclysmal action.

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  fig.  1882.  Q. Rev., July, 275. We now know what it is the Radical party are waiting for…. It is a cataclysmal catastrophe.

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1885.  Spectator, 19 Dec., 1693. [He] is too old to stand the shock of such a cataclysmal enlightenment.

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