Lewis & Short

dīmissĭo, ōnis, f. [dimitto].

  1. I. A sending in different directions, a sending out, sending forth (very rare): dimissiones libertorum ad faenerandas provincias, Cic. Par. 6, 2, 46: sanguinis, i. e. blood-letting, Gell. 10, 8 in lemm.
  2. * II. A dismissing, discharging: propugnatorum atque remigum, Cic. Verr. 2, 5, 33, § 86.
  3. III. The remission (of pain, fever, etc.; opp. accessio), Cael. Aur. Acut. 2, 3, 13; 2, 18, 108 al.