a. [f. prec. + -AL.] Of the nature of or belonging to a chasm.

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1872.  Howells, Their Wedd. Journ., 260. Any commanding point was sufficiently chasmal and precipitous.

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1882.  A. B. Blake, in Harper’s Mag., Feb., 351/1. A chasmal difference exists between Orleanists, Legitimists, Bonapartists, and the Opportunist government.

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