ὡρολόγ-ιον,τό,
A. an instrument for telling the time, a dialorclock, ὡ. σκιοθηρικόνthe sun-dialof Anaximenes, Plin. HN 2.187 ; a sun-dial (ὡρολόγιον) at Zea (Piraeus) mentioned in PHaw. 81 ( Att. periegesis ofiii B. C., pap. ofii A. D.); ἀπὸ τοῦ σκιακοῦ ὡρολογίου
IGRom. 4.293a
i35 (Pergam., prob. 127 / 6 B.C.), cf. Cleom. 1.10s q., Gem. 8.23 , Plu. 2.1006f , CIG 1947 (loc. inc.), Inscr.Cos 57 , Suid. (who writes itὡρολογεῖον); ὡ. ὑδραυλικόνa water-clock,
= κλεψύδρα , cf. Aristocl. ap. Ath. 4.174c , Plin. HN 7.213 , 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.).