a synoptic chart showing weather conditions, compiled from simultaneous observations taken at various weather stations
WordReference Random House Unabridged Dictionary of American English © 2025
weath′er map′,
- Meteorologya map or chart showing weather conditions over a wide area at a particular time, compiled from simultaneous observations at different places.
- 1870–75, American.
Collins Concise English Dictionary © HarperCollins Publishers::
'weather map' also found in these entries (note: many are not synonyms or translations):
isallobar
- isallotherm
- isobar
- isobront
- isodrosotherm
- isogradient
- isohel
- isohume
- isoneph
- isotach
- isothere
- isotherm