slackening, loosening, relaxation, remission
slackening, loosening, of bandages, Hp. Fract. 10 (pl.); τῇ χ. τε καὶ ἀνέσει Pl. R. 590b; relaxation, τοῦ ῥοώδους χαλάσεως δεομένου Gal. Sect.Intr. 7; τῶν στεγνῶν ib. 6; but χ. νόσου remission, opp. ἐπίδοσις, Id. 19.190.
2 free play
free play of the parts of a whole, Plot. 4.4.45; τῇ χαλάσει εἰδοποιηθῆναι Dam. Pr. 47.
3 lowering
lowering by means of pulleys, κιόνων University of Egypt, Faculty of Arts Bulletin 3(2).58.