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summable

American  
[suhm-uh-buhl] / ˈsʌm ə bəl /

adjective

Mathematics.

  1. capable of being added.

  2. (of an infinite series, especially a divergent one) capable of having a sum assigned to it by a method other than the usual one of taking the limit of successive partial sums.

  3. (of a function) possessing a finite Lebesgue integral.

Other Word Forms

  • summability noun
  • unsummable adjective

Etymology

Origin of summable

First recorded in 1775–85; sum + -able

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The conventional election method that we’re all familiar with, plurality voting, has as one really nice property: It’s what we call a summable voting system.

From Slate • Jun. 30, 2021

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.