di·a·pa·son
noun/ˌdaɪəˈpeɪzən/, /ˌdaɪəˈpeɪsən/
/ˌdaɪəˈpeɪzən/, /ˌdaɪəˈpeɪsən/
- an organ stop that produces a full loud sound
会发出很大声音的器官停止 Word Originlate Middle English (denoting the interval of an octave): via Latin from Greek dia pasōn (khordōn) ‘through all (notes)’.