What does buoyancy mean?

Definitions for buoyancy
ˈbɔɪ ən si, ˈbu yən sibuoy·an·cy

Here are all the possible meanings and translations of the word buoyancy.

Princeton's WordNet

  1. buoyancy, perkiness(noun)

    cheerfulness that bubbles to the surface

  2. airiness, buoyancy(noun)

    the property of something weightless and insubstantial

  3. buoyancy(noun)

    the tendency to float in water or other liquid

  4. irrepressibility, buoyancy(noun)

    irrepressible liveliness and good spirit

    "I admired his buoyancy and persistent good humor"


  1. buoyancy(Noun)

    The upward force on a body immersed or partly immersed in a fluid.

  2. buoyancy(Noun)

    The ability of an object to stay afloat in a fluid.

  3. buoyancy(Noun)

    Resilience or cheerfulness.

Webster Dictionary

  1. Buoyancy(noun)

    the property of floating on the surface of a liquid, or in a fluid, as in the atmosphere; specific lightness, which is inversely as the weight compared with that of an equal volume of water

  2. Buoyancy(noun)

    the upward pressure exerted upon a floating body by a fluid, which is equal to the weight of the body; hence, also, the weight of a floating body, as measured by the volume of fluid displaced

  3. Buoyancy(noun)

    cheerfulness; vivacity; liveliness; sprightliness; -- the opposite of heaviness; as, buoyancy of spirits


  1. Buoyancy

    In science, buoyancy is an upward force exerted by a fluid that opposes the weight of an immersed object. In a column of fluid, pressure increases with depth as a result of the weight of the overlying fluid. Thus a column of fluid, or an object submerged in the fluid, experiences greater pressure at the bottom of the column than at the top. This difference in pressure results in a net force that tends to accelerate an object upwards. The magnitude of that force is proportional to the difference in the pressure between the top and the bottom of the column, and is also equivalent to the weight of the fluid that would otherwise occupy the column, i.e. the displaced fluid. For this reason, an object whose density is greater than that of the fluid in which it is submerged tends to sink. If the object is either less dense than the liquid or is shaped appropriately, the force can keep the object afloat. This can occur only in a reference frame which either has a gravitational field or is accelerating due to a force other than gravity defining a "downward" direction. In a situation of fluid statics, the net upward buoyancy force is equal to the magnitude of the weight of fluid displaced by the body.

Dictionary of Nautical Terms

  1. buoyancy

    Capacity for floating lightly.--Centre of buoyancy, in naval architecture, the mean centre of that part of the vessel which is immersed in the water. (See CENTRE OF CAVITY.)

How to pronounce buoyancy?

  1. Alex
    US English

How to say buoyancy in sign language?

  1. buoyancy


  1. Chaldean Numerology

    The numerical value of buoyancy in Chaldean Numerology is: 8

  2. Pythagorean Numerology

    The numerical value of buoyancy in Pythagorean Numerology is: 7

Examples of buoyancy in a Sentence

  1. Daniel Meier:

    There is even one bigger issue; that is if the electronics fail it will just fall down to the ground. This can't happen with Skye because helium is providing the buoyancy, so if ever something goes wrong it becomes a huge balloon and people could play with it.

  2. The IMF:

    Keeping to these plans, however, is subject to significant risks related to (i) the ability to fully finance the ambitious 2016 personal income tax reform and (ii) uncertainties about the costs associated with the refugee crisis, while recent revenue buoyancy will help, it is likely that additional measures will be needed to reach the targeted deficit.

  3. Bob Barker:

    Usually what happens when a vessel is sinking is the master will ensure all compartments and hatches are shut so as to maintain buoyancy, on the Thunder, all the hatches had been opened, including the hatch leading to the fish hold.

  4. Stefan Worrall:

    The market's initial reaction to the GDP data was a slight strengthening of the yen, japanese policy makers could really use a sense of crisis to help justify ramping up fiscal stimulus or pushing out the VAT (sales tax) hike and a stronger GDP figure seems to undermine that narrative, though there is also some buoyancy from stronger U.S. inflation and increased expectations for Fed rate hikes.

  5. Julia Schwab:

    The changes in canal shape are better suited to life in the oceans, where buoyancy can hold up an animal, as compared to land, where animals need a highly sensitive sense of balance to cope with gravity and complex landscapes.

Images & Illustrations of buoyancy

  1. buoyancybuoyancybuoyancybuoyancybuoyancy

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Translations for buoyancy

From our Multilingual Translation Dictionary

  • vztlakCzech
  • opdriftDanish
  • Auftrieb, Fröhlichkeit, BelastbarkeitGerman
  • άνωση, άντωσηGreek
  • sustentación hidráulica, optimismo, flotabilidad, impulsoSpanish
  • noste, hilpeys, palautuvuus, kelluvuus, nostovoimaFinnish
  • flottabilité, poussée d'ArchimèdeFrench
  • buacachtIrish
  • so-lhoobaghtManx
  • felhajtó erőHungarian
  • buoyancia, anosa, antosaLatin
  • oppdriftNorwegian
  • drijfvermogen, vrolijkheid, opwaartse kracht, hilariteitDutch
  • oppdriftNorwegian Nynorsk
  • impulsão, empuxoPortuguese
  • flotabilitateRomanian
  • оптимизм, выталкивающая сила, позитивный настрой, подъёмная сила, жизнерадостность, плавучестьRussian
  • plovnostSerbo-Croatian

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