[F.; f. bouleverse-r to overturn: see prec.] A turning upside down, a violent inversion.
1814. Scott, Lett., in Life, xi. (Chandos), 251. There is need for a previous bouleversement of every thing.
1832. Blackw. Mag., XXXI. 553. The bouleversement of ideas which a revolution produces.
1877. W. Thomson, Voy. Challenger, I. iii. 185. The bouleversement of the dredge had plainly been caused by the twist in the new line.