any of various instruments for measuring humidity
WordReference Random House Unabridged Dictionary of American English © 2026
hy•grom•e•ter
(hī grom′i tər),USA pronunciation n.
- Meteorologyany instrument for measuring the water-vapor content of the atmosphere.
- hygro- + -meter 1660–70
Collins Concise English Dictionary © HarperCollins Publishers::
'hygrometer' also found in these entries (note: many are not synonyms or translations):