Lewis & Short

spīnētum, i, n. [spina], a thorn hedge, a thicket of thorns.

  1. I. Lit., Verg. E. 2, 9; Plin. 10, 74, 95, § 204: spineta sentesque, Sen. Ira, 2, 10, 4.
  2. II. Trop.: Aristotelis spineta, Hier. in Helv. 2.