the world > animals > invertebrates > phylum Arthropoda > class Insecta > parts of insects > [noun] > respiration > trachea (3)
a tube designed or used for the passage of air; spec. (a) a trachea or tracheole in an insect; (b) the inner tube of a pneumatic tyre.
Biology. A cavity, sac, or channel in a living organism which contains air; esp. a trachea or respiratory tube in an insect; an air-filled bladder…