Dro-sōm'e-ter, n.

n. [Fr. drosomètre, from Gr. δρόσος, dew, and μέτρον, measure.] An instrument for measuring the quantity of dew on the surface of a body in the open air. It consists of a balance, having a plate at one end to receive the dew, and at the other a weight protected from the deposit of dew.