Lewis & Short

ustrīna, ae, f. [uro].

  1. * I. A burning, burn, App. M. 7, p. 196, 30.
  2. II. A place for burning corpses, Inscr. Orell. 4517; cf. Fest. s. v. bustum, p. 32.
    Called also ‡ ustrī-num, i, n., Inscr. Grut. 656, 3; 755, 4; 1044, 7 al.