A.that which binds tight, lace, band, etc., “κόμας σφιγκτῆρα . . κεκρύφαλον” AP6.206 (Antip. Sid.); “ς. δεσμός” Nonn.D. 16.391.
II. muscle closing an aperture which naturally remains in the state of contraction, AP12.7 (Strat.), Heliod. ap. Orib.44.23.55, Sor.1.16, Gal.UP4.19, Paul.Aeg.6.78.
III. a Tarentine χιτών, prob. because laced tight to the body, Hsch.