gules

noun

1. (uncountable)Red, e.g. on a coat of arms, typically represented in engraving by vertical parallel lines.

   “The official blazon of the arms of Perth is "Gules, a Holy Lambe passant regardant staff and cross argent, with the banner of St. Andrew proper, all within a double tressure counter-flowered of the second": […].”

2. (form-of, plural)plural of gule

adj

1. In blazon, of the colour red.

   “The symbol of the Red Cross is a cross gules.”

   “Now is he total gules, horridly tricked”

   “You know they still Call themselves Bulls, though thus degenerate, And everything relating to a Bull Is popular and respectable in Thebes. Their arms are seven Bulls in a field gules; They think their strength consists in eating beef,—”