ἰςημερινός

A. equinoctial, ἀνατολή, δυσμή, Arist. Mete. 363a34,b1, cf. Str. 2.1.11; σκιά Hipparch. 1.3.6, cf. Str. 2.1.20; ζῴδιον Ptol. Tetr. 31; ὧραι standard hours (opp. καιρικός, q.v.), each = 1/24 of the νυχθήμερον, Hipparch. 1.1.10, Ptol. Alm. 2.9, Gal. 10.479, etc.; πυρὸς ἰ. wheat sown at that time, Thphr. CP 4.11.4; ὁ ἰ. κύκλος celestial equator, Arist. Mete. 345a3, Euc. Phaen. p.4M., Plu. 2.429f, etc.; ὁ ἰ. (sc. κύκλος), Hipparch. 1.10.22, Str. 1.1.21, etc.; ἁψίς Jul. Or. 5.168c; ἰ. χρόνοι time-degrees [each = 4 time-minutes] of the equator, Ptol. Alm. 1.16.