What is the meaning of Plectrum?

A small piece of plastic, metal, ivory, etc., for plucking the strings of a guitar, lyre, mandolin, etc.

A projection of bone or other stiff tissue, such as the ridges in some insects' stridulatory organs.

plectrum, pick (object for plucking certain string instruments)

a plectrum; tool for playing a stringed instrument

a lyre, lute

Source: wiktionary.org