buoyancy
NounUS[boi-uhn-see]/ˈbɔɪənsi/3 syllables
Open English WordNet
Noun (4)buoyancies
- cheerfulness that bubbles to the surfaceSynonyms: perkinessType of cheerfulness, blitheness
- the property of something weightless and insubstantialSynonyms: airinessType of lightness, weightlessness
- the tendency to float in water or other liquidType of tendency, inclination
- irrepressible liveliness and good spirit“I admired his buoyancy and persistent good humor”Synonyms: irrepressibilityType of liveliness, life
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spuriousadjective
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Webster's Dictionary (1913)
Buoy′an·cy (…), noun; pl. Buoyancies (…).
1. 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. Physics 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.
Such are buoyancies or displacements of the different classes of her majesty's ships.— English Cyclopædia,
3. Cheerfulness; vivacity; liveliness; sprightliness; — the opposite of heaviness; as, buoyancy of spirits.
Webster’s Revised Unabridged Dictionary (1913), from GCIDE 0.54