Ursuline adjective 1noun 1forms 1 adjective1 •Relating to or belonging to the Ursulines.Our convent gates are rude, and black, and close; / Our Ursuline veils of such a jealous woof, / There must be piercing in those curious eyes, / Would know if the skin beneath be swarth or snowy. — 1815 noun1 •One of a Roman Catholic female religious order whose patron saint is Saint Ursula. formsUrsulines