1) Cartilaginous structure 2) Speech organ 3) Vocal organ 
• (a.) Of or pertaining to the larynx; adapted to operations on the larynx; as, laryngeal forceps.
Having to do with the larynx.
Having to do with the larynx. ... (12 Dec 1998) ... 
(lә-rin´je-әl) pertaining to the larynx.
(1) Concerning the larynx. (2) A theoretical sound that probably existed in Proto-Indo-European, but
Lar`yn·ge'al adjective [ From Larynx .] Of or pertaining to the larynx; adapted to operations on the larynx; as, laryngeal forceps. 
Relating to the larynx.
Type: Term Pronunciation: lă-rin′jē-ăl Definitions: 1. Relating in any way to the larynx.
Laryngeal: Having to do with the larynx (the voice box).
[adj] - of or relating to or situated in the larynx
laryngeal Relating to the larynx.
Means 'of the larynx'. The larynx is the voice box. So laryngeal surgery is surgery to your voice box.
adjective of or relating to or situated in the larynx; `laryngeal infection`