waterfall

[waw-ter-fawl, wot-er-]
noun
1.
a steep fall or flow of water in a watercourse from a height, as over a precipice; cascade.
2.
a manner of arranging women's hair, as in long, loose waves.

Origin:
before 1000; Middle English; Old English wætergefeall. See water, fall

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Collins
World English Dictionary
waterfall (ˈwɔːtəˌfɔːl)
 
n
a cascade of falling water where there is a vertical or almost vertical step in a river

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

waterfall
O.E. wætergefeal; see water + fall. Cf. Ger. wasserfall, O.N. vatnfall.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

waterfall wa·ter·fall (wô'tər-fôl')
n.
Blood flow in vascular beds where lateral pressure greatly exceeds venous pressure and tends to collapse vessels.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
The next day, they trekked up a dirt road past the waterfall.
The two travel deep into the wilderness and at last discover a strange
  waterfall.
When she gets to the door, she chooses the red button with a waterfall on it,
  and walks into an empty room.
Officials believe it will be the largest engineered waterfall in the nation.
Images for Waterfall
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