WordReference Random House Unabridged Dictionary of American English © 2025
i•so•chrone
(ī′sə krōn′),USA pronunciation n.
- Geographya line, as on a map, connecting all points having some property simultaneously, as in having the same delay in receiving a radio signal from a given source or requiring the same time to be reached by available transportation from a given center.
- back formation from isochronous or isochronal 1690–1700
'isochrone' also found in these entries (note: many are not synonyms or translations):