Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

sesquialteral

adjective
ses·​qui·​al·​ter·​al

Definition of sesquialteral

: one and a half times as great as another : having the ratio of one and a half to one

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 sesquialteral

Latin sesquialter one and a half times as great (from sesqui- + alter other of two, second) + English -al

Keep scrolling for more

Learn More about sesquialteral

Share sesquialteral

Statistics for sesquialteral

Look-up Popularity

Comments on sesquialteral

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

Show Comments  Hide Comments 

WORD OF THE DAY

decoct

Listen to the pronounciation of decoct

to boil down or concentrate

Get Word of the Day daily email!

Test Your Vocabulary

Original Meanings Quiz

  • rembrandt-painting-a-young-scholar-and-his-tutor
  • Which of the following is the earliest known sense of the word awe?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
SCRABBLE® Sprint

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