Lewis & Short

vīvārĭus, a, um, adj. [vivus], of or belonging to living creatures.

  1. I. Adj.: naves, fish-boats, i. e. in which live fish are conveyed, Macr. S. 2, 12 med.
    More freq.,
  2. II. Subst.: vīvārĭum, ii, n., an enclosure in which game, fish, etc., are kept alive; a park, warren, preserve, fish-pond, Plin. 8, 52, 78, § 211; 8, 32, 50, § 115; Sen. Clem. 1, 18, 2; Plin. 9, 54, 79, § 168; 9, 55, 81, § 171; Juv. 4, 51; 3, 308.
    Transf.: excipiant senes, quos in vivaria mittant, i. e. whom they keep under their control in order to get made their heirs, Hor. Ep. 1, 1, 79.