Buoyancy is the ability that something has to float on a liquid or in the air.
Air can be pumped into the diving suit to increase buoyancy.
Synonyms: floatability, lightness, weightlessness More Synonyms of buoyancy
2. uncountable noun
Buoyancy is a person's ability to remain cheerful, even in sad or unpleasant situations.
I'll have to take stock, go carefully and regain my buoyancy.
3. uncountable noun
Buoyancy is a feeling of cheerfulness.
...a mood of buoyancy and optimism.
Synonyms: cheerfulness, bounce [informal], pep, animation More Synonyms of buoyancy
4. uncountable noun
There is economic buoyancy when the economy is growing.
The likelihood is that the slump will be followed by a period of buoyancy.
Synonyms: expansion, development, strength, mushrooming More Synonyms of buoyancy
buoyancy in British English
(ˈbɔɪənsɪ)
noun
1.
the ability to float in a liquid or to rise in a fluid
2.
the property of a fluid to exert an upward force (upthrust) on a body that is wholly or partly submerged in it
3.
the ability to recover quickly after setbacks; resilience
4.
cheerfulness
buoyancy in American English
(ˈbɔɪənsi; also ˈbujənsi)
noun
1.
the ability or tendency to float or rise in liquid or air
2.
the power to keep something afloat; upward pressure on a floating object
3.
lightness or resilience of spirit
Word origin
< buoyant
Examples of 'buoyancy' in a sentence
buoyancy
Instead the pilots carry buoyancy aids and an emergency air bottle for ditching at sea.
Times, Sunday Times (2008)
Pools with a perfect mix of ozone and oxygen increase buoyancy and produce quicker race times.
The Sun (2013)
Industries that have passed their peak decline slowly and are being held up by the overall buoyancy of the economy.
Peter F. Drucker MANAGEMENT: task, responsibilities, practices (1974)
Swimming was tricky, but they were an effective buoyancy aid.
Times, Sunday Times (2007)
Surfing such huge waves requires knee braces, buoyancy aids and weights for the descent.
Times, Sunday Times (2013)
Participants should always wear a helmet, buoyancy aid and wetsuit.
Times, Sunday Times (2013)
Apart from helping the buoyancy of the boat, there is another advantage to moving from side to side with the crew.
Times, Sunday Times (2015)
Our youngest learned to walk, our middle son enjoyed his first pony ride and our eldest swam for the first time without any buoyancy aids.
The Sun (2015)
A buoyancy aid is safer.
Times, Sunday Times (2014)
Despite the apparent buoyancy of the economy, and its lightning scramble out of the global financial crisis, deep sensitivities remain.
Times, Sunday Times (2009)
In other languages
buoyancy
British English: buoyancy NOUN
on liquid etcBuoyancy is the ability that something has to float on a liquid or in the air.
Air can be pumped into the diving suit to increase buoyancy.
American English: buoyancy
Brazilian Portuguese: flutuabilidade
Chinese: 浮力
European Spanish: flotabilidad
French: flottabilité
German: Schwimmfähigkeit
Italian: galleggiabilità
Japanese: 浮力
Korean: 부력
European Portuguese: flutuabilidade
Latin American Spanish: flotabilidad
British English: buoyancy NOUN
cheerfulnessBuoyancy is a feeling of cheerfulness.
...a mood of buoyancy and optimism.
American English: buoyancy
Brazilian Portuguese: vivacidade
Chinese: 开朗
European Spanish: flotabilidad
French: entrain
German: Schwung
Italian: allegria
Japanese: 陽気さ
Korean: 쾌활
European Portuguese: vivacidade
Latin American Spanish: flotabilidad
All related terms of 'buoyancy'
buoyancy aid
a type of usually foam-filled lifejacket designed for use in sports such as canoeing
buoyancy bags
bags inflated to keep a spacecraft or helicopter afloat and upright when it lands in the sea
buoyancy tank
an enclosed air-filled section of a boat, ship or hovercraft designed to keep it afloat and prevent it from sinking
buoyancy chamber
an enclosed section of a canoe , float , ship or other object that contains air, foam , or another buoyant substance in order to help maintain buoyancy
buoyant force
Physics See under Archimedes' principle Also called : buoyancy force
1 (noun)
Air can be pumped into the diving suit to increase buoyancy.
Synonyms
floatability
lightness
weightlessness
2 (noun)
a mood of buoyancy and optimism
Synonyms
cheerfulness
He was particularly remembered for his unfailing cheerfulness.
bounce (informal)
the natural bounce of youth
pep
They need something to put the pep back in their lives.
animation
They both spoke with animation.
good humour
high spirits
zing (informal)
He just lacked that extra zing.
liveliness
spiritedness
cheeriness
sunniness
3 (noun)
The slump will be followed by a period of buoyancy.