[UNDER-1 5 b.] The lower jaw or mandible.
1697. A. Lovell, trans. Thevenot’s Trav., I. 22. Mahomet the second having taken Constantinople,… beat off the under jaw of one of those heads.
1762. Sterne, Tr. Shandy, V. xxxviii. Touching his under-jaw with the thumb.
1774. Goldsm., Nat. Hist., II. v. 91. The under jaw in a Chinese face falls greatly more backward than with us.
1802. Paley, Nat. Theol., xii. § 2. 238. The retired under jaw of a swine.
1868. Rep U.S. Commissioner Agric. (1869), 329. [The female trout] has a less-projecting under-jaw.
