Part of the respiratory tract between the pharynx and the trachea, having walls of cartilage and muscle and containing the vocal cords.
Source:
PAC, 2016, 88, 713. 'Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)' on page 772 (https://doi.org/10.1515/pac-2015-1202)