a. [f. next + -IC.] Of, pertaining to, or of the nature of a tornado.

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1877.  Eutaw (AL) Whig & Observer, 10 May, 2/3. For ten years, the storm burst of human passion and revenge of last Sunday [by a violent mob] has been impending, and gathering its forces for a tornadic outburst.

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1879.  W. D. Bickham, From Ohio to the Rocky Mountains, Let. iv. 41. They [the winds] gather in the titanic rifts of the Rocky Mountains as in mighty funnels, and rush over the unobstructing barrenness with tornadic sweep.

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1884.  Amer. Meteorol. Jrnl., I. 7. Four series of storms of tornadic character have passed over the states east of the Mississippi River since the beginning of the year.

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1890.  Columbus (Ohio) Dispatch, 13 June. These are tornadic conditions.

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1898.  H. W. Lucy, in Daily News, 18 Feb., 2/2. Mr. Orchardson’s portrait … presenting the ex-Speaker in one of his not unfamiliar tornadic moods.

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