Definition of tracheal in US English:

tracheal

adjective

  • See trachea

    • ‘The lantern tracheal system is also highly specialized.’
    • ‘The receptors have long fused rhabdoms and are surrounded by a tracheal tapetum.’
    • ‘The aquatic larvae or nymphs possess respiratory abdominal tracheal gills.’
    • ‘This finding illustrates how morphological changes during development can improve tracheal conductance.’
    • ‘The air sacs leading into and out of the lungs hold a large volume of fresh air, so in general, the respiratory costs of tracheal elongation are probably not high.’

Pronunciation

tracheal

/trəˈkiəl//trəˈkēəl/