NCIt definition : The instantaneous rate of gas flow in the airway, expressed as the pressure difference
between any given part of the airway and the alveoli; it is the reciprocal of airway
resistance (Raw).;
Alternative definition : CDISC: The instantaneous rate of air flow in the airway, expressed as the pressure
difference between any given part of the airway and the alveoli; it is the reciprocal
of airway resistance (Raw).;