[boi-uh n-see, boo-yuh n-see]
- the power to float or rise in a fluid; relative lightness.
- the power of supporting a body so that it floats; upward pressure exerted by the fluid in which a body is immersed.
- lightness or resilience of spirit; cheerfulness.
Origin of buoyancy
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for buoyance
A buoyance in the very air proclaimed that school days were over.Highacres
He liked the buoyance of glider flying, the nearest approach of man to the bird, and thus far everything was going well.Mercenary
Dallas McCord Reynolds
The blow which rendered her without control did not break her spirit, but it pressed out its buoyance.Girlhood and Womanhood
The fur of the coat seemed not to get wet through, and retained a certain amount of air that added to buoyance.Sinking of the Titanic
This buoyance was interrupted but once, and briefly, ere he gained the haven of his office.The Sturdy Oak
Samuel Merwin, et al.
- the ability to float in a liquid or to rise in a fluid
- the property of a fluid to exert an upward force (upthrust) on a body that is wholly or partly submerged in it
- the ability to recover quickly after setbacks; resilience
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 buoyance
Online Etymology Dictionary, © 2010 Douglas Harper
- 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.