from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A plane set at an angle to the horizontal, especially a simple machine used to raise or lower a load by rolling or sliding.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun One of the
simple machines; a sloping surfacesuch as a rampsuch that an objectcan be raisedwith less effortthan being lifted vertically.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a simple machine for elevating objects; consists of plane surface that makes an acute angle with the horizontal
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