WordReference Random House Unabridged Dictionary of American English © 2025
bar•o•ther•mo•hy•gro•graph
(bar′ə thûr′mə hī′grə graf′, -gräf′),USA pronunciation n. [Meteorol.]
- Meteorologyan automatic instrument for recording pressure, temperature, and humidity.
- baro- + thermo- + hygrograph