Hÿ'gro-grāph, n.
n. [Gr. ὑγρός, wet, moist, and γράφειν, to write.] (Physics.) An instrument for recording automatically the variations of the humidity of the atmosphere.
n. [Gr. ὑγρός, wet, moist, and γράφειν, to write.] (Physics.) An instrument for recording automatically the variations of the humidity of the atmosphere.