Definition of brachistochrone
: a curve in which a body starting from a point and acted on by an external force will reach another point in a shorter time than by any other path
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!
Origin and Etymology of brachistochrone
French, from Greek brachistos shortest + chronos time
Seen and Heard
What made you want to look up brachistochrone? Please tell us where you read or heard it (including the quote, if possible).