trigger, release-mechanism, Arist. Mu. 398b15, Ph. Bel. 74.27, Hero Aut. 13.9, Bel. 78.3, Plb. 8.5.10, 8.6.3, Apollod. Poliorc. 188.7; trigger (worked by the foot) of a mechanism (cf. ὕσπληξ) for starting a race, Gal. 18(1).438.
perh. curtain-releasing mechanism, or curtain-rod, κατασκευάσαντι σ. χαλκᾶς εἰς τὸν νεὼ τοῦ Ἀσκληπιοῦ . . καὶ τῷ ἐνέντι τὰς σ. εἰς τὸν νεώ Inscr.Délos 372 A 110 (iii B.C.); κίρκων καὶ σχαστηριῶν ib. 320 B 67 (iii B.C.).
pl., attachments for relaxing the pressure of a surgical noose, Heraclas ap. Orib. 48.7.3.
place-name in IG 2(2).2776.17,203.