a. [SQUARE a. 12.] Having the head or top fashioned or cut in a square form:
a. Arch. Of doors, windows, etc.
1815. J. Smith, Panorama Sci. & Art, I. 169. An example of the square-headed door of the Perpendicular style.
1837. Civil Eng. & Arch. Jrnl., I. 19/1. Even the arch of the porch is not enclosed by a square-headed label.
1861. Jas. Campbell, Balmerino & its Abbey, II. xii. 154. This apartment was originally lighted by two square-headed windows.
b. Of bolts or nails.
1825. Scott, Betrothed, iv. A volley of … square-headed bolts of great size and thickness.
1862. Miss Braddon, Lady Audley, i. Old oak, studded with great square-headed iron nails.
c. In other applications.
1857. Hughes, Tom Brown, i. They are a square-headed and snake-necked generation.
1883. J. D. Jerrold Kelly, in Harper’s Mag., Aug., 450/1. A large square-headed topsail.
1903. C. F. A. Williams, Notation, 93. The virga had become the square-headed note [symbol], and the punctum either a square ■ or a lozenge ♦.
