Entry 1 sense Webster, 1913 Leprosity /(lē̇*prŏs"ĭ*ty̆)/ · Le·pros·i·ty · IPA /lɛˈpɹɑsɪti/ 01 n. The state or quality of being leprous or scaly; also, a scale. 1. The state or quality of being leprous or scaly; also, a scale.