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.