from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A small keyboard used by pianists for exercising the fingers, without producing any sound; a dumb piano.
from the GNU version of the Collaborative International Dictionary of English
- n. A small dumb keyboard used by pianists for exercising the fingers; -- called also dumb piano.
from The Century Dictionary and Cyclopedia
- n. A small portable instrument used for giving strength and flexibility to the fingers in piano-playing.
- n. It is shaped like a diminutive piano, and has a keyboard with five keys resting on strong metal springs. Also called dumb piano.
Latin digitus a finger. (Wiktionary)