Syrinx (?), n.; pl. Syringes (#). [NL., from Gr. &unr_; a pipe.] 1. (Mus.) A wind instrument made of reeds tied together; -- called also pandean pipes.
[1913 Webster]

2. (Anat.) The lower larynx in birds.
[1913 Webster]

&hand_; In birds there are two laringes, an upper or true, but voiceless, larynx in the usual position behind the tongue, and a lower one, at or near the junction of the trachea and bronchi, which is the true organ of the voice.
[1913 Webster]