Lewis & Short

tūrĭbŭlum (thūr-), i, n. [tus].

  1. I. Lit., a vessel to burn incense in, a censer, Cic. Verr. 2, 4, 21, § 46; Liv. 29, 14, 13; Curt. 8, 9, 23; Val. Max. 3, 3, ext. 1; Aus. Idyll. 12, 104; Prud. Apoth. 479.
  2. II. Transf., a constellation, otherwise called Ara, German. Arat. 390; Vitr. 9, 7.