fall line

noun

Definition of fall line

1 :a line joining the waterfalls on numerous rivers that marks the point where each river descends from the upland to the lowland and the limit of the navigability of each river
2 :the natural downhill course (as for skiing) between two points on a slope

First Known Use of fall line

1882


Learn More about fall line


Seen and Heard

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

Love words? Need even more definitions?

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

WORD OF THE DAY

to praise usually to excess

Get Word of the Day daily email!

Love words? Need even more definitions?

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