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单词 buoyancy
释义

WordReference Random House Learner's Dictionary of American English © 2024
buoy•an•cy /ˈbɔɪənsi, ˈbuyənsi/USA pronunciation  also ˈbuoy•ance,n. [uncountable]
  1. Physicsthe power to float or rise in a fluid:That piece of light wood has a lot of buoyancy.
  2. Physicsthe power of a liquid to support an object so that it floats:Buoyancy is the pressure of a liquid pushing upward on an object that is in that liquid.
  3. lightness of spirit;
    cheerfulness.

WordReference Random House Unabridged Dictionary of American English © 2024
buoy•an•cy  (boi′ən sē, bo̅o̅′yən sē),USA pronunciation n. 
  1. Physicsthe power to float or rise in a fluid;
    relative lightness.
  2. Physicsthe power of supporting a body so that it floats;
    upward pressure exerted by the fluid in which a body is immersed.
  3. lightness or resilience of spirit;
    cheerfulness.
Also, buoy′ance. 
  • buoy(ant) + -ancy 1705–15

Collins Concise English Dictionary © HarperCollins Publishers::
buoyancy /ˈbɔɪənsɪ/ n
  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
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更新时间：2025/7/23 16:25:33