A quill, or a piece of ivory, wood, etc. used to pluck the strings of an instrument such as a harpsichord, mandolin, zither, guitar, etc.
See also [Eng.] plectrum; [Fr.] plectre (m); [Ger.] Spielblättchen (n); [Ger.] Plektrum (n); [It.] plettro (m).