cumulant

noun

cu·​mu·​lant

ˈkyümyələnt,

÷-mə-

plural -s

: any of the statistical coefficients that arise in the series expansion in powers of x of the logarithm of the moment-generating function

Word History

Etymology

Latin cumulant-, cumulans, present participle of cumulare to heap up

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now