BUOYANCY • DICTIONARY ONE.COM • Definition of Buoyancy

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/bˈɔɪənsi/ Listen

noun

Buoyancy n. (pl. buoyancies)

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.

(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."

Cheerfulness; vivacity; liveliness; sprightliness; the opposite of heaviness; as, buoyancy of spirits.

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Etymology of 'Buoyancy'

Collaborative International Dictionary of English 0.48

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"Buoyancy" Quotes from Famous Books

... along the shores of the island, he talked of his schemes, and of a certain sense of fear that they gave him, lest they were too vast to be accomplished by his means and in his lifetime, but with the sanguine buoyancy of a man still in full vigour, and who had met with almost ...

— Pioneers and Founders - or, Recent Workers in the Mission field • Charlotte Mary Yonge

... melancholy that seized her in all her solitary moments? Her nature had lost its buoyancy, its old gift ...

— Helbeck of Bannisdale, Vol. II • Mrs. Humphry Ward

... suggestion of her former buoyancy in Kate's manner. Her eyes had something of their old-time sparkle as she reached inside the blousing front of her flannel shirt and laid in Mrs. Toomey's hand a packet of crisp banknotes secured by bands ...

— The Fighting Shepherdess • Caroline Lockhart

... pretty dancing wavelets just where they ran, lipped with jewelled spray, on the shore, and then only had I a chance to scrutinise their material. I patted that one we were upon inside and out. I noted with a seaman's admiration its lightness, elasticity, and supreme sleekness, its marvellous buoyancy and fairy-like "lines," and after some minutes' consideration it suddenly flashed across me that it was all of gourd rind. And as if to supply confirmation, the flat land we were approaching on the opposite side of the bay was covered by the characteristic ...

— Gulliver of Mars • Edwin L. Arnold

... forerunner of divination and treasure-discovery,—he could not forego that opportunity of trying his luck, without hazarding a dangerous example. He was also conscious of feeling "chipper,"—another local expression for buoyancy of spirit, not common to men who work fifty feet below the surface, without the stimulus of air and sunshine, and not to be overlooked as an important factor in fortunate adventure. Nevertheless, noon came without the discovery of any treasure. He had attacked the walls ...

— The Twins of Table Mountain and Other Stories • Bret Harte

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