piano stool
noun
a stool on which a pianist sits when playing a piano, esp one whose height is adjustable
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Examples from the Web for piano stool
Historical Examples of piano stool
After several minutes he stopped and swung around on the piano-stool.
"Father has been promising me a piano-stool for more than a year," she explained, laughing.
InterruptedPansy
Louis, what has become of that piano-stool we used to have in our library in town?
InterruptedPansy
She sank down upon the piano-stool and let her hands fall upon the keys.
The Man From GlengarryRalph Connor
Why do they always screw up the piano-stool at the last moment!
TanteAnne Douglas Sedgwick