buoyancy compensator
Diving
noun
An inflatable vest worn while scuba-diving whose buoyancy can be increased or decreased, especially so as to establish neutral buoyancy or to facilitate ascent to the surface; abbreviated BC.
Origin
1970s; earliest use found in Sub-aqua Magazine.
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- preacher man
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- preaching cross
- preaching friar
- preaching house
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- sun bonnet
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- Sun City