ὡρολόγιον

English (LSJ)

τό,

   A an instrument for telling the time, a dial or clock, ὡ. σκιοθηρικόν the sun-dial of Anaximenes, Plin.HN2.187; a sun-dial (ὡρολόγιον) at Zea (Piraeus) mentioned in PHaw.81 (Att. periegesis of iii B. C., pap. of ii A. D.); ἀπὸ τοῦ σκιακοῦ ὡρολογίου IGRom.4.293ai35 (Pergam., prob. 127/6 B.C.), cf. Cleom.1.10sq., Gem.8.23, Plu.2.1006f, CIG1947 (loc. inc.), Inscr.Cos57, Suid. (who writes it ὡρολογεῖον) ; ὡ. ὑδραυλικόν a water-clock, = κλεψύδρα, cf. Aristocl. ap.Ath.4.174c, Plin.HN7.213, Bato 2.14; μηχανικὰ ὡ. Ach.Tat. Intr.Arat.25.6: the dimensions of a water(?)-clock are given in POxy.470.31 (iii A. D.).