circle of Apollonius

circle of Ap·​ol·​lo·​nius | \-ˌapəˈlōnyəs, -nēəs\

Definition of circle of Apollonius 

: a circle that is the locus of points the ratio of whose distances from two given fixed points is constant

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 circle of Apollonius

after Apollonius of Perga, 3d century b.c. Greek mathematician

Keep scrolling for more

Learn More about circle of Apollonius

Share circle of Apollonius

Statistics for circle of Apollonius

Look-up Popularity

Comments on circle of Apollonius

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


something that serves to warn or remind

Get Word of the Day daily email!

Test Your Vocabulary

Autumn Words of the Day 2018

  • a-top-down-image-of-road-through-an-autumn-forest
  • Which is a synonym of fugacious?
True or False

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

Bee Cubed

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!