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landform

[land-fawrm]
noun Geology.
  1. a specific geomorphic feature on the surface of the earth, ranging from large-scale features such as plains, plateaus, and mountains to minor features such as hills, valleys, and alluvial fans.
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Origin of landform

First recorded in 1890–95; land + form
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for landform

landform

noun
  1. geology any natural feature of the earth's surface, such as valleys and mountains
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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

Word Origin and History for landform

n.

1893; see land (n.) + form (n.). Perhaps immediately from German Landform.

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Online Etymology Dictionary, © 2010 Douglas Harper
landform in Science

landform

[lănd′fôrm′]
  1. A recognizable, naturally formed feature on the Earth's surface. Landforms have a characteristic shape and can include such large features as plains, plateaus, mountains, and valleys, as well as smaller features such as hills, eskers, and canyons.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.