hyetograph

American

[hahy-et-uh-graf, -grahf, hahy-i-tuh-] / haɪˈɛt əˌgræf, -ˌgrɑf, ˈhaɪ ɪ tə- /

noun

a map or chart showing the average rainfall for the localities represented.

hyetograph British

/ ˈhaɪɪtəˌɡrɑːf, -ˌɡræf /

noun

a chart showing the distribution of rainfall of a particular area, usually throughout a year
a self-recording rain gauge

"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

Etymology

Origin of hyetograph

hyeto- + -graph

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023