trachea: Meaning and Definition of

tra•che•a

1. the tube in humans and other air-breathing vertebrates extending from the larynx to the bronchi, serving as the principal passage for conveying air to and from the lungs; the windpipe. See diag. under lung.
2. (in insects and other arthropods) one of the air-conveying tubes of the respiratory system.
3. vessel (def. 5).