A.equal in period of revolution, “οἱ ἀπλανεῖς ἀστέρες ἰσόχρονοί εἰσιν ἀλλήλων” Eudox.Ars16.15; equal in period of maturity, cj. in Thphr.CP1.18.3 (περισσόχρονος codd., παρισό- Schneid., alternatively).
2. contemporary, Gloss.; τινος Vit. Theoc.
3. even, regular, “σφυγμός” Gal.8.830.
II. Gramm., consisting of the same number of time-units, A.D.Synt.272.23, Hermog.Id.1.12, Aristid.Quint.1.23.