Examples from the Web for hygrometer
Thus the hygrometer is worthy to be studied on a hunting morning.A Cotswold Village|J. Arthur Gibbs
Thermometer a measurer of heat; barometer, a measurer of the weight of the air; hygrometer, a measurer of moisture.Practical Education, Volume II|Maria Edgeworth
The relation is not that of a thermometer or hygrometer to the warmth and moisture of the air; it is a vital relation.The Breath of Life|John Burroughs
On the contrary, if the hygrometer shows continuing or increasing dryness, a stronger wind is probable, without rain.A Treatise on Meteorological Instruments|Henry Negretti
It was of an hygrometer, which, like the common ones, was to give the actual moisture of the air.