curettagePronunciation: /kjʊəˈrɛtɪdʒ, ˌkjʊərɪˈtɑːʒ/Definition of curettage noun [mass noun] Surgery the use of a curette, especially on the lining of the uterus. See dilatation and curettage.Origin: late 19th century: from French, from curettecurettage in other Oxford dictionaries Definition of curettage in the US English dictionary