ἀναπνευστικός
From LSJ
ἑτέρως ἠδύνατο βέλτιον ἢ ὡς νῦν ἔχει κατεσκευάσθαι → otherwise they could have been constructed better than they are now (Galen, On the use of parts of the body 4.143.1 Kühn)
English (LSJ)
ή, όν,
A of or for respiration, ὁ ἀ. τόπος the respiratory region, Id.Sens. 445a27, Thphr.Sud.38; τὰ μὴ ἀ. [ζῷα] Arist.Spir.482a8; ἀ. δύναμις the power of breathing, M.Ant.6.15; τὰ -κά respiratory organs, Alex.Aphr.Pr.1.119.