名詞 helicon:

1. a tuba that coils over the shoulder of the musician
   同義詞：bombardon

hel.i.con

n.Music （名詞）【音樂(lè)】
A large spiral brass tuba that fits around the player`s shoulder.
海力空大號(hào)，圈形大號(hào)：由演奏者掮在其肩上吹奏的大型螺旋狀銅號(hào)

來(lái)源：
Probably from Greek helix, helik- [spiral]
可能源自 希臘語(yǔ) helix, helik- [螺旋]