hygroscope

[ hahy-gruh-skohp ]
/ ˈhaɪ grəˌskoʊp /

noun

an instrument that indicates the approximate humidity of the air.

Origin of hygroscope

First recorded in 1655–65; hygro- + -scope

Example sentences from the Web for hygroscope

British Dictionary definitions for hygroscope

hygroscope
/ (ˈhaɪɡrəˌskəʊp) /

noun

any device that indicates the humidity of the air without necessarily measuring it

Scientific definitions for hygroscope

hygroscope
[ hīgrə-skōp′ ]

An instrument that records changes in atmospheric humidity. Unlike a hygrometer, a hygroscope only indicates a change in relative humidity, without measuring the magnitude of the change.