platykurtic

[plat-i-kur-tik] /ˌplæt ɪˈkɜr tɪk/
adjective, Statistics.
1.
(of a frequency distribution) less concentrated about the mean than the corresponding normal distribution.
2.
(of a frequency distribution curve) having a wide, rather flat distribution about the mode.
Origin
1900-05; platy- + kurt- (irregular < Greek kyrtós bulging, swelling) + -ic
British Dictionary definitions for platykurtic

platykurtic

/ˌplætɪˈkɜːtɪk/
adjective
1.
(statistics) (of a distribution) having kurtosis B2 less than 3, less heavily concentrated about the mean than a normal distribution Compare leptokurtic, mesokurtic
Word Origin
C20: from platy- + Greek kurtos arched, bulging + -ic