hygrometer

名词 hygrometer:

1. measuring instrument for measuring the relative humidity of the atmosphere

hy.grom.e.ter

n.（名词）
Any of several instruments that measure atmospheric humidity.
湿度计：测量大气湿度的几种器具的任何一种

【引伸】
hy.gromet.ric
hygrom.etry
n.（名词）