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Definition of "buoyancy" []

  • The tendency or capacity to remain afloat in a liquid or rise in air or gas. (noun)
  • The upward force that a fluid exerts on an object less dense than itself. (noun)
  • Ability to recover quickly from setbacks; resilience. (noun)
  • Lightness of spirit; cheerfulness. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "buoyancy" in a sentence
  • "Analysis shows that this buoyancy is attributable mainly to an improvement in our manufacturing industries."
  • "The aeroplane does; and the instant its propellers cease to revolve, its buoyancy is lost."
  • "To explain the dive I have to show you how to remove the buoyancy from a submarine."