a. [f. TRANS- 5 + L. pulmo, pulmōn-en lung: cf. pulmonary.] Acting or operated through the lungs: said of the respiration in birds, in which the lungs are connected with large air-sacs, into and out of which the air passes through the lungs.
1902. G. B. Howes, in Rep. Brit. Assoc., 624. The respiratory process in the bird may be defined as transpulmonary.
