ἀποτομή

English (LSJ)

ἡ,

   A cutting off, τῶν χειρῶν X.HG2.1.32: in pl., Ti. Locr.97d.    2 piece, segment, ἀπὸ τοῦ ἀπείρου Epicur.Ep.2.p.37 U.; γῆς Ph.2.77, cf. ib. 124 (pl.), Diog.Oen.24; κόσμου Ocell.3.3; τοιαύτας ἔχειν τὰς ἀ., of the moon in eclipse, Arist.Cael.297b25, cf. 294n4, Plot.6.4.7; end cut off, Dsc.5.120.    b in Music, difference between λεῖμμα and τόνος, Gaud.Harm.14; τοῖς ἡμιτόνιοις τῷ τε ἐλάσσονι καὶ τῷ μείζονι, τουτέστι τοῦ τε λείμματος καὶ τῇ ἀ. ib.16.    c Math., compound irrational straight line equivalent to binomial surd with negative sign, Euc.10.83, al.    3 branching off, τῶν φλεβίων Arist.HA497a17; place where roads intersect, Plb.6.29.9.    4 division of an argument into sections, D.H.Is.15.    5 in Tactics, = φαλαγγαρχία (q.v.), Ascl.Tact.2.10, etc.