Lewis & Short

pastĭnāca, ae, f. [pastino].

  1. I. A parsnip, a term including also our carrot, Plin. 19, 5, 27, § 89; 25, 9, 64, § 112; Isid. Orig. 17, 10.
  2. II. A fish of prey, the sting-ray, Plin. 9, 42, 67, § 144; 9, 48, 72, § 155; Cels. 6, 9.