Lewis & Short

dējectĭo, ōnis, f. [deicio], a throwing or casting down or out (rare).

  1. I. Lit. (acc. to deicio no. 1 A. and B.): imaginum, Nazar. Pan. Const. 12, 2.
  2. II. Esp.
    1. A. Medic. t. t.: alvi, a purging, Cels. 1, 3; 2, 7 al.: dejectio alone, Sen. Ep. 120, 16.
    2. B. Esp., legal t. t., ejection, a turning out of possession: qui illam vim dejectionemque fecerit, * Cic. Caecin. 20, 57; Dig. 43, 16, 1, § 34.
    3. C. (Acc. to dejectus, P. a. no. I.) Altitudines stellarum et dejectiones, depressions, Firmic. Math. 2, 3.
  3. III. Trop.: gradūs dejectio, degradation, Dig. 49, 16, 3: populi nostri, Vulg. 1 Mac. 3, 43.
    (Sen. Q. N. 2, 59, 11, defectione is prob. the true reading.)