ventilatory

adj

1. Of, pertaining to, functioning as, or by means of a ventilator.

   “Indeed, they possess not only a ventilatory system, composed of two scaphognathites ventilating a domiciliar cavity, but also a cardiovascular system composed of a well-differentiated heart and, in the Cylindroleberid family, 6-8 lamellar gills (Vannier et al., 1996; Horne et al., 2002).”