an oblong, floor-mounted electrified guitar, usually having ten strings, fretted with a steel bar and producing a wailing sound that is modulated by use of a foot pedal.
Also called pedal steel.
Origin
1965-70, Americanism
British Dictionary definitions for pedal steel guitar
pedal steel guitar
noun
1.
a floor-mounted, multineck, lap steel guitar with each set of strings tuned to a different open chord and foot pedals to raise or lower the pitch