mordent
/ˈmɔːdənt/noun
- Music an ornament consisting of one rapid alternation of a written note with the note immediately below or above it in the scale (sometimes further distinguished as lower mordent and upper mordent). The term inverted mordent usually refers to the upper mordent.【乐】波音（一种装饰音, 有时进一步区分为上波音和下波音, 逆波音通常指上波音）。
词源
early 19th cent.: via German from Italian mordente, present participle of mordere 'to bite'.