ἰσόχρονος

ον, τινος, Adv.
A. equal in period of revolution, οἱ ἀπλανεῖς ἀστέρες ἰσόχρονοί εἰσιν ἀλλήλων Eudox. Ars 16.15; equal in period of maturity, cj. in Thphr. CP 1.18.3 (περισσόχρονος codd., παρισό‐ Schneid., alternatively).
2. contemporary, Gloss.; τινος Vit. Theoc.
3. even, regular, σφυγμός Gal. 8.830.
4. Adv. ‐νως Eudox. Ars 5.8, Gem. 6.27, S.E. M. 5.83, Ruf. Syn.Puls. 3.
II. Gramm., consisting of the same number of time-units, A.D. Synt. 272.23, Hermog. Id. 1.12, Aristid.Quint. 1.23.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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