Larynx

n. structure in the upper throat of a human which contains the vocal chords; vocal organ in certain animals

The larynx (plural larynges), colloquially known as the voicebox, is an organ in the neck of mammals involved in protection of the trachea and sound production. The larynx houses the vocal folds, and is situated just below where the tract of the pharynx splits into the trachea and the esophagus.
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Larynx /lar·ynx/ pl. laryn´ges [L.] the organ of voice; the air passage between the lower pharynx and the trachea, containing the vocal cords and [more]Larynx - Community and Resources

Noun
1. a cartilaginous structure at the top of the trachea; contains elastic vocal cords that are the source of the vocal tone in speech
(synonym) voice box
(hypernym) cartilaginous structure
(part-holonym) upper respiratory tract
(part-meronym) glottis

n. larynx, upper throat, vocal chords