platy·kur·tic \| ̷ ̷ ̷ ̷|kərd.ik\adjective Etymology:platy- + kurt- (from Greek kyrtos bulging, curved) + -ic — more at leptokurtic 1.of a frequency distribution curve: being less peaked than the corresponding normal distribution curve 2.of a frequency distribution: being less concentrated about the mean than the corresponding normal distribution