Synonym: airiness, irrepressibility, perkiness. Similar words: buoyant, annoyance, clairvoyance, buoy, flamboyant, clairvoyant, abeyance, conveyance. Meaning: ['bɔɪənsɪ] 
n. 1. cheerfulness that bubbles to the surface 2. the property of something weightless and insubstantial 3. the tendency to float in water or other liquid 4. irrepressible liveliness and good spirit.
n. 1. cheerfulness that bubbles to the surface 2. the property of something weightless and insubstantial 3. the tendency to float in water or other liquid 4. irrepressible liveliness and good spirit. 
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1 He was a man of remarkable buoyancy.
2 We tested the boat for its buoyancy.
3 Salt water has more buoyancy than fresh water.
4 A few other sectors have some buoyancy.
5 The life streams were flowing with buoyancy.
6 Then she hit on a buoyancy technique.
7 Its chanting quality sounds a note of buoyancy and music in the evocation of the enormity of the Crucifixion.
8 It provides buoyancy and this, for the bulk of the descendants of these air-breathing pioneers, became a more important faculty.
9 The air's buoyancy and the sun's ray Are of advantage to me.
10 They were held in place only by their buoyancy. could wobble and rattle them with ease.
11 If the density increases upwards,(www.Sentencedict.com) then buoyancy forces provide an additional source of energy for the turbulence.
12 In one sense, everyone benefits from the buoyancy of academic book publishing.
13 I admired his buoyancy and persistent good humor.
14 On the analogy of the magnetic and gravitational buoyancy forces, the concept of the magnetic acceleration is proposed.
15 As I gradually master my buoyancy and hover 15 feet below the surface, I can see schools of small yellow groupers beneath the dive boat giving wide berth to a blade of a barracuda.
16 During blastoff of the stratospheric airship by buoyancy, stable attitude control is needed.
17 Air can be pumped into the diving suit to increase buoyancy.
18 The likelihood is that the slump will be followed by a period of buoyancy.
19 Even more hopeful was the fact that, after five months' immersion, the bamboo had not lost its buoyancy.
20 There is not much temperature-produced density contrast at a given level; thus this does not much affect the buoyancy force.
21 Six-year-old Michael Smith and his parents were spotted by a passing yacht as they clung to a tiny buoyancy bag in darkness.
22 Of course he had some other assets, but the collapse of the central part of his fortune did not make for buoyancy.
23 The leaf-stalk is thickened with air-filled tissues inside for buoyancy of the plant.
24 There was no possibility now that she could capsize: built with positive buoyancy, she was incapable of sinking.
25 Negative Richardson number corresponds to a destabilizing density gradient; both shear and buoyancy give rise to turbulence generation.
26 As long as he moved in a straight line at a uniform speed, he felt a wonderful sense of buoyancy.
27 The stability of ship without trimming in all process of the transverse inclination is discussed, i. e. the centre of buoyancy is shifted only in a body plane.
28 The double piezometer is made of organic glasses and rubber membranes. It can not only directly shows the interior pressure in liquid, but also can be used in the buoyancy force related experiments.
29 Main driving force for migration of separate phase natural gas is buoyancy, and resistance is capillary force.
30 Between bullying and charm, Prokhorov has amassed a global fortune and sold an image of mystery and intrigue. And yet, so far, his ownership run with Nets has had far more bluster than buoyancy.
More similar words: buoyant, annoyance, clairvoyance, buoy, flamboyant, clairvoyant, abeyance, conveyance, fancy, vacancy, tenancy, piquancy, vibrancy, pregnancy, stagnancy, redundancy, ascendancy, accountancy, discrepancy, conservancy, occupancy rate, life expectancy, royal, loyal, aryan, banyan, voyage, by and by, royalty, royalist.