Lewis & Short

† dĭastēma (short ĕ, Sid. Carm. 15, 64), ătis, n., = διάστημα, space between, distance, interval (late Lat.).

  1. I. In gen., Sid. Ep. 8, 11 med.
  2. II. Esp., in music, an interval, Mart. Cap. 9, § 948; Censor. 13.