Spirábilis, & hoc spirábile. pen. cor. Vir. Liuely: that whereby we liue and breath.Naris spiramina.The holes of the nose.Cœli spirabile lumen.Virg.Sumere animum spirabilem.Cic.
Lewis and Short: Latin dictionary
spīrābĭlis, e, adj. [spiro], that may be breathed, good to breathe, breathable, respirable.I.Lit.: terra circumfusa undique est hac animali spirabilique naturā, cui nomen est aër, Cic. N. D. 2, 36, 91; cf. id. ib. 2, 6, 18; id. Tusc. 1, 17, 40; 1, 29, 70.—II.Transf.A.Pass., that serves to sustain life, vital: per sidera testor, caeli spirabile lumen, Verg. A. 3, 600.— B.Act., that can breathe, fitted for breathing, respiratory: viscera, Plin. 9, 7, 6, 17.