gypsumPronunciation: /ˈdʒɪpsəm/Translate gypsum | into Italian Definition of gypsum noun [mass noun] a soft white or grey mineral consisting of hydrated calcium sulphate. It occurs chiefly in sedimentary deposits and is used to make plaster of Paris and fertilizers, and in the building industry. Derivatives gypsiferousPronunciation: /-ˈsɪf(ə)rəs/ adjective Origin: late Middle English: from Latin, from Greek gupsosgypsum in other Oxford dictionaries Definition of gypsum in the US English dictionary
