- the line, as on mountains, above which there is perpetual snow.
- the latitudinal line marking the limit of the fall of snow at sea level.
Origin of snow line
First recorded in 1825–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for snow line
This summit is covered with snow; and it is under the snow-line he usually makes his haunt.Bruin
You must know that there is a line on all high mountains which is called the snow-line.Rivers of Ice
As for myself, I profess to be little more than a greenhorn above the snow-line.A Tramp's Notebook
To the northward and eastward the snow-line was certainly much higher.Western Himalaya and Tibet
We had passed what may be called the snow-line in winter a little above 2,000 feet.Hours of Exercise in the Alps
- the altitudinal or latitudinal limit of permanent snow
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
- The boundary marking the lowest altitude at which a given area, such as the top of a mountain, is always covered with snow.
- The boundary marking the furthest extent around the polar regions at which there is snow cover. The polar snow lines vary with the seasons.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.