theorem of Pythagoras

theorem of Py·​thag·​o·​ras | \ -pə̇ˈthagərəs, -pīˈ-, -thaig-\

Definition of theorem of Pythagoras

: pythagorean theorem

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 theorem of Pythagoras

after Pythagoras, 6th century b.c. philosopher and mathematician

Keep scrolling for more

Comments on theorem of Pythagoras

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


concealed or difficult to comprehend

Get Word of the Day daily email!

Test Your Vocabulary

Pass the Little Ribbons: A Pasta Word Quiz

  • rotelle pasta
  • Match the pasta to its meaning in English: Rotelle
Spell It

Can you spell these 10 commonly misspelled words?

Add Diction

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

Love words? Need even more definitions?

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