Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

equilateral arch

noun

Definition of equilateral arch 

: a two-centered pointed arch in which the chords of the curves are equal to the span

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!

Learn More about equilateral arch

Share equilateral arch

Resources for equilateral arch

Cite Time Traveler Time Traveler! Explore the year a word first appeared

Dictionary Entries near equilateral arch

equigranular

equilater

equilateral

equilateral arch

equilateral cross

equilateral hyperbola

equilaterally

Statistics for equilateral arch

Look-up Popularity

Comments on equilateral arch

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

Show Comments  Hide Comments 

WORD OF THE DAY

brouhaha

a state of commotion or excitement

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Roman Mythology Quiz

  • the-triumph-of-venus-by-alessandro-magnasco
  • Boreal comes from the name of the ancient Greek god of which wind?
True or False

Test your knowledge - and maybe learn something along the way.

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