fall line

  1. an imaginary line, marked by waterfalls and rapids, where rivers descend abruptly from an upland to a lowland.

  2. Fall Line, (in the eastern United States) the imaginary line between the Piedmont and the Atlantic coastal plain.

  1. Skiing. the path of natural descent from one point on a slope to another.

Origin of fall line

An Americanism dating back to 1880–85

Words Nearby fall line

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use fall line in a sentence

  • Great tracts of wilderness separated communities beyond the fall-line of the rivers.

    Union and Democracy | Allen Johnson

British Dictionary definitions for fall line (1 of 2)

fall line

  1. skiing the natural downward course between two points on a slope

  2. the edge of a plateau

British Dictionary definitions for Fall Line (2 of 2)

Fall Line

  1. a natural junction, running parallel to the E coast of the US, between the hard rocks of the Appalachians and the softer coastal plain, along which rivers form falls and rapids

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for fall line

fall line

[ fôl ]

  1. A line connecting the waterfalls of nearly parallel rivers that marks a drop in land level.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.