buoyancy

English

WOTD – 28 September 2011

Etymology

From buoyant +‎ -cy or buoy +‎ -ancy.

Pronunciation

• (UK, US) IPA^(key): /ˈbɔɪ.ən.si/

• Audio (General Australian):

  (file)

Noun

buoyancy (countable and uncountable, plural buoyancies)

1. (physics) The upward force on a body immersed or partly immersed in a fluid.
2. The ability of an object to stay afloat in a fluid.
3. (by extension) Resilience or cheerfulness.
   • 1834, L[etitia] E[lizabeth] L[andon], chapter XI, in Francesca Carrara. […], volume III, London: Richard Bentley, […], (successor to Henry Colburn), →OCLC, page 82:

     With how much lighter a step, with how much brighter an eye, did Francesca wander through the forest, even in the last desolation of autumn, than she did in all the bloom and buoyancy of spring!

Derived terms

• buoyancy aid
• buoyancy tank
• center of buoyancy
• centre of buoyancy
• overbuoyancy
• unbuoyancy

 

Related terms

• buoyant
• buoy
• buoy up

Translations

physics: upward force on an immersed body

• Afrikaans: dryfvermoë
• Arabic: طَفْو m (ṭafw), طُفُوّ m (ṭufuww)
• Bulgarian: плаваемост f (plavaemost)
• Chinese:

  Mandarin: 浮力 (zh) (fúlì)

• Czech: vztlak m
• Danish: opdrift c
• Dutch: opwaartse kracht f, drijfvermogen (nl)
• Finnish: noste (fi)
• French: poussée d’Archimède (fr) f, flottabilité (fr) f
• Georgian: ამომგდები ძალა (amomgdebi ʒala), ამწევი ძალა (amc̣evi ʒala)
• German: Auftrieb (de) m
• Greek: άνωση (el) f (ánosi), άντωση (el) f (ántosi)
• Hindi: उत्प्लावकता (hi) (utplāvaktā), उत्प्लावन (utplāvan)
• Hungarian: felhajtó erő
• Irish: buacacht f
• Italian: spinta (it) f, spinta statica f, forza ascensionale f, spinta idrostatica f
• Japanese: 浮力 (ja) (furyoku)
• Latin: anosa f, antosa f, buoyancia f
• Macedonian: пловност f (plovnost)
• Maori: pūrewatanga
• Norwegian:

  Bokmål: oppdrift m or f

  Nynorsk: oppdrift f

• Polish: siła wyporu f
• Portuguese: impulsão (pt) f, empuxo (pt)
• Russian: подъёмная си́ла f (podʺjómnaja síla), выта́лкивающая си́ла (vytálkivajuščaja síla)
• Serbo-Croatian:

  Roman: plovnost (sh) f

• Spanish: sustentación hidráulica, impulso (es)
• Swedish: lyftkraft (sv) c
• Thai: แรงลอยตัว (rɛɛng-lɔɔi-dtuua)
• Turkish: kaldırma kuvveti (tr)

ability to stay afloat

• Afrikaans: dryfvermoë
• Bulgarian: плаваемост f (plavaemost)
• Dutch: drijfvermogen (nl) n
• Finnish: kelluvuus
• Georgian: ტივტივადობა (ṭivṭivadoba)
• German: Schwimmfähigkeit f
• Greek: πλευστότητα (el) f (plefstótita)
• Ido: flotacemeso (io)
• Irish: buacacht f
• Italian: galleggiabilità f
• Macedonian: пловност f (plovnost)
• Russian: плаву́честь (ru) f (plavúčestʹ)
• Spanish: flotabilidad f
• Swedish: flytförmåga c
• Turkish: batmazlık (tr)
• Ukrainian: пла́вність f (plávnistʹ)

resilience or cheerfulness

• Dutch: vrolijkheid (nl) f, hilariteit (nl) f
• Finnish: palautuvuus, hilpeys (fi)
• German: Belastbarkeit (de) f, Fröhlichkeit (de) f, Heiterkeit (de) f
• Greek: ανάταση (el) f (anátasi)
• Italian: vivacità (it) f, ottimismo (it) m
• Japanese: 回復 (ja), 快活 (ja) (kaikatsu)
• Manx: so-lhoobaght f
• Russian: жизнера́достность (ru) f (žiznerádostnostʹ), оптими́зм (ru) m (optimízm), позити́вный настро́й (pozitívnyj nastrój)
• Spanish: optimismo (es)

See also

• Archimedes' principle