Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Piston" Definition
noun
A solid cylinder or disk that fits snugly into a larger cylinder and moves under fluid pressure, as in a reciprocating engine, or displaces or compresses fluids, as in pumps and compressors.
Source: American Heritage Dictionary
Music A valve mechanism in brass instruments for altering the pitch.
Source: American Heritage Dictionary
A sliding piece moved by or moving against fluid pressure which usually consists of a short cylindrical body fitting within a cylindrical chamber or vessel along which it moves back and forth.
Source: Merriam-Webster
A sliding valve moving in a cylinder in a brass instrument which when depressed by a finger knob serves to lower the instrument's pitch.
Source: Merriam-Webster
biographical name
Walter Hamor 1894–1976 Am. composer.
Source: Merriam-Webster
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