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buoyancy

 - 4 dictionary results

buoy⋅an⋅cy

  [boi-uhn-see, boo-yuhn-see]
–noun
1. the power to float or rise in a fluid; relative lightness.
2. the power of supporting a body so that it floats; upward pressure exerted by the fluid in which a body is immersed.
3. lightness or resilience of spirit; cheerfulness.
Use buoyancy in a Sentence
Also, buoyance.

Origin:
1705–15; buoy(ant) + -ancy
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2010.
Cite This Source Link To buoyancy
buoy·an·cy   (boi'ən-sē, bōō'yən-)   
n.  

    1. The tendency or capacity to remain afloat in a liquid or rise in air or gas.

    2. The upward force that a fluid exerts on an object less dense than itself.

  2. Ability to recover quickly from setbacks; resilience.

  3. Lightness of spirit; cheerfulness.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Cultural Dictionary

buoyancy

The force that causes objects to float. According to the principle of Archimedes, when a solid is placed in a fluid (a liquid or a gas), it is subject to an upward force equal in magnitude to the weight of the fluid it has displaced.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Science Dictionary
buoyancy   (boi'ən-sē)  Pronunciation Key 
The upward force that a fluid exerts on an object that is less dense than itself. Buoyancy allows a boat to float on water and provides lift for balloons.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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