spīrābilis, e, adj. spiro, that may be breathed, good to breathe, breathable, respirable. Lit.: terra circumfusa undique est hac animali spirabilique naturā, cui nomen est aer, Cic. N. D. 2, 36, 91; cf. id. ib. 2, 6, 18; id. Tusc. 1, 17, 40; 1, 29, 70.
— Transf. * Pass., that serves to sustain life, vital: per sidera testor, caeli spirabile lumen, Verg. A. 3, 600.
—* Act., that can breathe, fitted for breathing, respiratory: viscera, Plin. 9, 7, 6, ยง 17.