Lewis & Short

nŏvācŭla, ae, f. [novo],

  1. I. a sharp knife.
    1. A. Lit.: cutem raporum novaculā decerpere, Col. 12, 56, 1; Plin. 22, 23, 47, § 99.
    2. B. Esp.
      1. 1. A razor: ut ex novaculā comperistis, tonsor est, Petr. 103: aream (capitis) novaculā radere, Cels. 6, 4: nudare caput, Mart. 2, 66, 7: secare fauces, Suet. Calig. 23; Plin. 29, 6, 34, § 107: Tarquinius dixit, se cogitāsse, cotem novaculā posse praecidi, Cic. Div. 1, 17, 32; cf. Liv. 1, 36; Val. Max. 1, 4, 1.
      2. 2. A dagger: stringitur in densā nec caeca novacula turbā, Mart. 7, 61, 7.
  2. II. Transf., the name of a fish, otherwise unknown, Plin. 32, 2, 5, § 14.