landform

[land-fawrm]
noun Geology.
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.

Origin:
1890–95; land + form

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
landform (ˈlændˌfɔːm)
 
n
geology any natural feature of the earth's surface, such as valleys and mountains

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

landform
1893, from land (n.) + form.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
landform   (lānd'fôrm')  Pronunciation Key 
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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Britannica
Encyclopedia

landform

any conspicuous topographic feature on the largest land areas of the Earth. Familiar examples are mountains (including volcanic cones), plateaus, and valleys. (The term landform also can be applied to related features that occur on the floor of the Earth's ocean basins, as, for example, seamounts, mid-oceanic ridges, and submarine canyons.) Such structures are rendered unique by the tectonic mechanisms that generate them and by the climatically controlled denudational systems that modify them through time. The resulting topographic features tend to reflect both the tectonic and the denudational processes involved.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
Do the same on the other transparency for the landform region map.
The result was a high, flat landform called a plateau.
It is a wide, flat, elevated landform with steep sides.
The odd holes are unlike any other landform yet seen in the solar system.
Image for Landform
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