[f. TOPPLE v. + -ING2.] That topples.

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  1.  Overhanging or leaning as if about to fall.

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1804.  J. Grahame, Sabbath, 259. Back from the toppling edge his fancy shrinks.

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1817.  Byron, Manfred, I. ii. 74. Ye toppling crags of ice! Ye avalanches, whom a breath draws down.

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1883.  Symonds, Ital. Byways, v. 83. The storm-clouds … climbing the heavens with toppling castle towers and domes of alabaster.

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  2.  Falling headlong (lit. and fig.).

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1812.  H. & J. Smith, Rej. Addr., Archit. Atoms, xvi. Jill … Head over heels begins his toppling track.

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1884.  Browning, Ferishtah, Pillar at Sebzevar, 14. Gain, to-day, Was toppling loss to-morrow.

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