a. [f. as prec. + -ILE1.] Pertaining to fraction or breakage; indicating liability to breakage or cleavage.
1717. Bailey, vol. II., Fractile, Frail or Brittle.
1893. C. F. Lummis, The Cities That Were Forgotten, in Scribner’s Mag., XIII. April, 470/2. But while the pre-historic aborigine here had no tools wherewith to dress any rock but tufa, the natural cleavage and the fractile lines of the sandstone were extremely kind to him, and he could pick from his quarry ready-made slabs which had every appearance of having been roughly worked.
