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1. Oxford Dictionary

   buoyancy

   • IPA[ˈbɔɪənsi]

   英式

   • n.
     the ability or tendency of something to float in water or other fluid.；the power of a liquid to keep something afloat

   • noun: buoyancy

2. • 釋義
   • 相關詞

   n.

   名詞

   • 1. the ability or tendency of something to float in water or other fluid. 同義詞 ability to float, tendency to float, lightness, rarefloatability
   • ▪ the power of a liquid to keep something afloat she plunged into the sea, grateful for the buoyancy of the salt water 同義詞 lift, lifting effect
   • 2. a cheerful and optimistic attitude or disposition. 同義詞 cheerfulness, cheeriness, happiness, light-heartedness, carefreeness, ... 更多brightness, gladness, merriment, joy, bounce, effervescence, blitheness, sunniness, breeziness, jollity, joviality, animation, liveliness, life, sprightliness, jauntiness, ebullience, high spirits, vivacity, vitality, verve, sparkle, zest, optimism, confidence, hope, bullishness, sanguineness, positiveness, informalpep, zing, zip反義詞 depression, pessimism
   • 3. a high level of activity in an economy or stock market there is renewed buoyancy in the demand for steel 同義詞 vigour, strength, high level of activity, burgeoning, resilience, ... 更多growth, development, progress, improvement, expansion, mushrooming, snowballing, ballooning反義詞 depression

   buoyancy aid

   • n.
     a sleeveless jacket lined with buoyant material, worn for water sports.

   Oxford Dictionary

   centre of buoyancy

   • n.
     the centroid of the immersed part of a ship or other floating body.

   Oxford Dictionary

   center of buoyancy

   • n.
     the centroid of the immersed part of a ship or other floating body.

   Oxford American Dictionary

3. • 更多解釋

   buoyancy

   • IPA[ˈboiənsē]

   美式

   • n.
     the ability or tendency to float in water or air or some other fluid.

   Oxford American Dictionary