[ hahy-gruh-graf, -grahf ]
/ ˈhaɪ grəˌgræf, -ˌgrɑf /


a self-recording hygrometer.

Origin of hygrograph

First recorded in 1860–65; hygro- + -graph
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for 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

/ (ˈhaɪɡrəˌɡrɑːf, -ˌɡræf) /


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

[ hīgrə-grăf′ ]

A hygrometer that records variations in atmospheric humidity.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.