Balbriggan. A descriptive term applied to cotton knitted fabrics, either hosiery or underwear, and referring to the color, signifying that the articles are brown or unbleached. The term is especially applied to those fabrics or articles knitted of smooth, level yarns, and possessed of but little nap; so called from the town of Balbriggan, County Dublin, Ireland, where brown knitted hosiery was first produced.