Now rare. [f. TRUNCATE v. + -URE.] = TRUNCATION 2.
1828. Stark, Elem. Nat. Hist., II. 56. Shell oval, oblong, or turreted;… columella smooth, straight, without truncature or widening at the base.
1854. Kelly & Tomlinson, trans. Arago’s Astron., 75. One horn of its [Mercury’s] crescent is truncated; and it is this truncature that has enabled us to determine the period of its rotation.
1866. Contemp. Rev., July, 452. Crystals are characterized by the truncatures of their angles, and the bevelment of their edges.
