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hydrotechny
hydrotechny n. 
/ˈhaɪdroʊˌtɛkni/ the technical management or utilization of water.
Brit. /ˈhʌɪdrə(ʊ)ˌtɛkni/
, /ˈhʌɪdrə(ʊ)ˌtɛkni/U.S. /ˈhaɪdrəˌtɛkni/
, /ˈhaɪdrəˌtɛkni//ˈhaɪdroʊˌtɛkni/Π
1902 Encycl. Brit. XXV. 374/2 In Arizona, Mexico, and Peru reservoirs and aqueducts prove that hydrotechny was understood.
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