Lewis & Short

dīmensĭo, ōnis, f. [dimetior], a measuring.

  1. I. Prop.: quadrati, Cic. Tusc. 1, 24, 57.
  2. II. Transf., the axis of the earth, Hygin. Astr. 1, 3.
      1. 2. Extent, dimensions, in gen., Macr. Somn. Scip. 1, 6, 36; 2, 2, 3 al.
        So plur. Amm. 23, 6, 11.
  3. III. Trop.: vocum, Quint. 9, 4, 45: versuum, id. 48; cf. id. 52 and 85.