noun. undefined

noun. A passageway or shaft in which air circulates, as in ventilating a mine.

noun. The upper passages of the respiratory system by which air reaches the lungs.

noun. undefined

noun. An airline.

noun. A regular route of travel for aircraft.

noun. Any passage in a mine used for purposes of ventilation; an air-course.

noun. a duct that provides ventilation, as in mines.

noun. The trachea.

noun. A flight path used by aeroplanes.

noun. the passages through which air enters and leaves the body

noun. a duct that provides ventilation (as in mines)

noun. a commercial enterprise that provides scheduled flights for passengers

noun. a designated route followed by airplanes in flying from one airport to another

"But in drug abuse, in people who abuse smoke or inhaled drugs, you can see some lung damage, damage to the airways and the air sacs, what we call airway obstruction in a fashion similar to emphysema, not truly emphysema, but what we call airway obstruction, especially if there's tobacco abuse on top of potentially marijuana or cocaine smoking."

line  

fairway  stairway  

airflow  arterial  artery  bladder  bronchial  

air duct  air duct  air hole  air lane  air line