trichord

adjective

tri·​chord

(ˈ)trī¦kȯrd,

-ȯ(ə)d

: of, relating to, or being a piano having three strings tuned in unison to each digital throughout most of its compass

Word History

Etymology

Greek trichordos three-stringed, from tri- three + -chordos stringed, from chordē string

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