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hydrograph

American

[hahy-druh-graf, -grahf] / ˈhaɪ drəˌgræf, -ˌgrɑf /

noun

a graph of the water level or rate of flow of a body of water as a function of time, showing the seasonal change.

hydrograph British

/ ˈhaɪdrəˌɡrɑːf, -ˌɡræf /

noun

a graph showing the seasonal variation in the level of a body of water, from which its velocity and discharge can be calculated

"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 hydrograph

First recorded in 1890–95; hydro- ¹ + -graph

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Willow Payne kept an eye on data from a hydrograph upstream in Arlington and posted updates to the town’s private Facebook group.

From Seattle Times • Dec. 7, 2023

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