Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

summatory

adjective
sum·​ma·​to·​ry | \ ˈsəməˌtōrē\

Definition of summatory

: of, relating to, or serving as a summation his endings have that glowing summatory quality— Clifton Fadiman

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

History and Etymology for summatory

Medieval Latin summatus (past participle of summare to sum) + English -ory

Keep scrolling for more

Learn More about summatory

Share summatory

Statistics for summatory

Look-up Popularity

Comments on summatory

What made you want to look up summatory? Please tell us where you read or heard it (including the quote, if possible).

Show Comments  Hide Comments 

WORD OF THE DAY

hamartia

Listen to the pronounciation of hamartia

a flaw that causes the downfall of a hero

Get Word of the Day daily email!

Test Your Vocabulary

A Green Quiz

  • shamrock
  • What is the best definition of green-eyed monster?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Words at Play

Ask the Editors

Word Games