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tree line

noun

timberline

[tim-ber-lahyn] /ˈtɪm bərˌlaɪn/
noun
1.
the altitude above sea level at which timber ceases to grow.
2.
the arctic or antarctic limit of tree growth.
Also called tree line.
Origin of timberline
1865-1870
1865-70, Americanism; timber + line1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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Examples from the Web for tree-line
Historical Examples
  • Higher and higher, above the tree-line now, the path went on, and there were signs of travel along it that worried me.

    Valley of the Croen Lee Tarbell
  • As the malocca was but a short distance from the forest border, the tree-line would bring them close to its water frontage.

  • I have stood upon the thick tops of cedar trees on high places in the White mountains near the tree-line.

  • Above the tree-line no sound ascends but a faint vibration, the body of sound making itself felt in the silence.

    California Mary Austin
  • In Colorado alone the Arctic-Alpine territory above the tree-line probably extends over five million or more acres.

British Dictionary definitions for tree-line

timberline

/ˈtɪmbəˌlaɪn/
noun
1.
the altitudinal or latitudinal limit of normal tree growth See also tree line

tree line

noun
1.
the zone, at high altitudes or high latitudes, beyond which no trees grow. Trees growing between the timberline and the tree line are typically stunted
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
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Word Origin and History for tree-line

timberline

n.

1867, from timber + line (n.).

Online Etymology Dictionary, © 2010 Douglas Harper
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tree-line in Science
timberline
  (tĭm'bər-līn')   
A geographic boundary beyond which trees cannot grow. On the Earth as a whole, the timberline is the northernmost or southernmost latitude at which trees can survive; in a mountainous region, it is the highest elevation at which trees can survive. Also called tree line.
tree line  
See timberline.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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4
4
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