Pl. -i. Entom. [L. tornus turner’s wheel or lathe, a. Gr. τόρνος a tool for rounding.] The inner or anal angle of the wing of an insect, esp. of the secondary wing of a tineid moth. Hence Tornal a., of or pertaining to the tornus.
1897. Ld. Walsingham, in Proc. Zool. Soc., 19 Jan., 76. A creamy-ochreous dorsal streak … runs from the base through the tornal cilia. Ibid., 96. The apical and tornal angles of the cell;… cilia with a slight ochreous tinge about the tornus.
1904. Sir G. F. Hampson, in Annals & Mag. Nat. Hist., Sept., 176. Hind wing … a fiery red stigma on termen near tornus.
