Hydrogen sulphide
noun
1.
a colourless poisonous soluble flammable gas with an odour of rotten eggs: used as a reagent in chemical analysis. Formula: H2S Also called sulphuretted hydrogen
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- Hydrogen tartrate
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- Hydrogen transport
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- Hydrogeology
[hahy-droh-jee-ol-uh-jee] /ˌhaɪ droʊ dʒiˈɒl ə dʒi/ noun 1. the science dealing with the occurrence and distribution of underground water. /ˌhaɪdrədʒɪˈɒlədʒɪ/ noun 1. the branch of geology dealing with the waters below the earth’s surface and with the geological aspects of surface waters hydrogeology (hī’drō-jē-ŏl’ə-jē) The scientific study of the occurrence, distribution, and effects of groundwater.
- Hydrograph
[hahy-druh-graf, -grahf] /ˈhaɪ drəˌgræf, -ˌgrɑf/ noun 1. a graph of the water level or rate of flow of a body of water as a function of time, showing the seasonal change. /ˈhaɪdrəˌɡrɑːf; -ˌɡræf/ noun 1. a graph showing the seasonal variation in the level of a body of water, from which its velocity and discharge […]