Thin-walled, cartilaginous tube descending from the larynx to the bronchi and carrying air to the lungs.
Source:
PAC, 2016, 88, 713. 'Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)' on page 814 (https://doi.org/10.1515/pac-2015-1202)