KURTOSIS Meaning of KURTOSIS in English [ kə:'təʊsɪs ]■ noun Statistics the sharpness of the peak of a frequency-distribution curve.Originearly 20th cent.: from Gk kurtōsis 'bulge', from kurtos 'bulging, convex'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004