1.nounEither of a pair of cartilages at the back of the larynx, used in the production of different kinds of voice quality (for example, creaky voice).
2.nounArytenoid muscle
3.adjectiveRelating to or being either of two small laryngeal cartilages to which the vocal cords are attached.
"arytenoid cartilage"
4.adjectiveRelating to or being either of a pair of small muscles (oblique arytenoid) or an unpaired muscle (transverse arytenoid) of the larynx.