1.in fit time or place, in season, seasonable, opportune, convenient, Soph., Thuc.; of places, ἐπικαιρότατον χωρίον ἀποχρῆσθαι most convenient to use, id=Thuc.; τοὺς ἐπικαίρους τῶν τόπων Dem.:—also c. gen., λουτρῶν ἐπίκαιρος convenient for . . , Soph.
2.of parts of the body, vital, Xen.