hygroscope

[ hahy-gruh-skohp ]

noun

1. an instrument that indicates the approximate humidity of the air.

hygroscope

/ ˈhaɪɡrəˌskəʊp /

noun

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

hygroscope

/ hī′grə-skōp′ /

1. 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.

Word History and Origins

Origin of hygroscope¹

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

Example Sentences

The chimney top with the dowel attached to it below is made to revolve so that the Hygroscope may be adjusted.

From Project Gutenberg

Certain forms of hygroscope are popularly miscalled barometers.

From Project Gutenberg

The third is, the hygroscope, moving the punch, which shews the difference between the moistest and driest airs.

From Project Gutenberg