- lepto- + kurtosis + -ic (Wiktionary)
“In reviewing the performance on the model over past election cycles, I noticed that its error in individual districts was somewhat leptokurtic or "fat-tailed".”
“Monte Carlo simulations show good finite-sample performance, less so if distributions are skewed or leptokurtic".”
These user-created lists contain the word ‘leptokurtic’.
Looking for tweets for leptokurtic.