[[t]ˈhaɪ drəˌgræf, -ˌgrɑf[/t]] n.
geo a graph of the water level or rate of flow of a body of water as a function of time, showing the seasonal change
Etymology: 1890–95

From formal English to slang. 2014.

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  • hydrograph — /huy dreuh graf , grahf /, n. a graph of the water level or rate of flow of a body of water as a function of time, showing the seasonal change. [1890 95; HYDRO 1 + GRAPH] * * * …   Universalium

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  • hydrograph —    1. A graph relating stage, flow, velocity, or other characteristics of water with respect to time [22].    2. A time record of stream discharge at a given cross section of the stream or of the stream surface elevation at a given point [16] …   Lexicon of Cave and Karst Terminology

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