noun
1. : a strap or one of two straps that pass across the shoulder or shoulders and hold up an article or garment
2.
a. : one of a pair of narrow rectangular pieces of cloth worn parallel to the shoulder seams of a military dress uniform, bearing the wearer's insignia of rank embroidered in gold or silver, being of the color of his branch (as dark blue for a general officer, red for an artillery officer), bordered with gold bullion, and now replaced in the United States Navy by shoulder marks and worn in the United States Army only on the blue dress coat
b. : shoulder loop