WordReference Random House Unabridged Dictionary of American English © 2026
o•rom•e•ter
(ô rom′i tər, ō rom′-),USA pronunciation n.
or′o•met′ric, adj.
- Meteorologyan aneroid barometer with a scale giving elevations above sea level, used to determine land-surface altitudes.
- oro-1 + -meter 1875–80