[F.; f. bouleverse-r to overturn: see prec.] A turning upside down, a violent inversion.

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1814.  Scott, Lett., in Life, xi. (Chandos), 251. There is need for a previous bouleversement of every thing.

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1832.  Blackw. Mag., XXXI. 553. The bouleversement of ideas … which a revolution produces.

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1877.  W. Thomson, Voy. Challenger, I. iii. 185. The bouleversement of the dredge had plainly been caused by the twist in the new line.

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