hygrograph

[hahy-gruh-graf, -grahf]

noun

a self-recording hygrometer.

Origin of hygrograph

First recorded in 1860–65; hygro- + -graph

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Examples from the Web for hygrograph

Historical Examples of hygrograph

This and other types of hygrometer can be arranged to record their own readings continuously, constituting a hygrograph.
Meteorology
Charles Fitzhugh Talman

British Dictionary definitions for hygrograph

hygrograph

noun

an automatic hygrometer that produces a graphic record of the humidity of the air

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Science definitions for hygrograph

hygrograph

[hī′grə-grăf′]

A hygrometer that records variations in atmospheric humidity.