Same as Isochronal
- equal in extent or interval
- Same as Isochronal.
1706, with suffix -ous, from contemporary Latin isochronus, from Greek isokhronos "equal with time," from iso- "equal" (see iso-) + khronos "time" (see chrono-). Previously in exact same good sense had been isochronal (1670s).
(a.) identical to Isochronal.
As an additional claim to remembrance, he was the first to solve Leibnitz's problem of the isochronous curve (Acta Eruditorum, 1690).