plectrum
noun(also informal pick)
a small piece of metal, plastic, etc. used for plucking the strings of a guitar or similar instrument Topics Musicc2(弹拨琴弦用的)琴拨,拨子 Oxford Collocations DictionaryPlectrum is used after these nouns:- guitar
Word Originlate Middle English: via Latin from Greek plēktron ‘something with which to strike’, from plēssein ‘to strike’.