Also bevillment. [f. as prec. + -MENT.] The process of bevilling; spec. in Crystallog., the replacement of the edge of a crystal by two similar planes equally inclined to the adjacent faces.
1804. R. Jameson, Mineral., I. 204. There is formed a four-sided prism bevilled on both extremities,… and the edge of the bevillment is truncated.
1870. H. Macmillan, Bible Teach., xvi. 313. The truncatures of their [i.e. crystals’] angles, and the bevelment of their edges.
