Hy*grom"e*ter(?), n. [Gr. wet, moist + -meter: cf. F. hygromtre.] (Physics) An instrument for measuring the degree of moisture of the atmosphere.
Daniell's hygrometer, a form of hygrometer consisting of a bent glass tube terminating in two bulbs, the one covered with muslin, the other of black glass, and containing ether and a thermometer. Ether being poured on the muslin, the black ball, cooled by the evaporation of the ether within, is soon covered with dew; at this moment, the inclosed thermometer gives the dew-point, and this, compared with the reading of one in the air, determines the humidity.
Hy`gro*met"ric*al(?), } a. [Cf. F. hygromtrique.] 1. Of or pertaining to hygrometry; made with, or according to, the hygrometer; as, hygrometric observations.
2. Readily absorbing and retaining moisture; as,
hygrometric substances, like potash.
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Tue 04th August 2020