Entry 1 sense Webster, 1913 Angusticlave /(ăn*gŭs"tĭ*klāv)/ · An·gus·ti·clave · IPA 01 n. A narrow stripe of purple worn by the equites on each side of the tunic as a sign of rank. 1. A narrow stripe of purple worn by the equites on each side of the tunic as a sign of rank.(Rom. Antiq.)