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| Terms for subject Environment (5171 entries) |
| hydrobiologi | hydrobiology (Study of organisms living in water) | |
| hydrogen | hydrogen (A flammable colourless gas that is the lightest and most abundant element in the universe. It occurs mainly in water and in most organic compounds and is used in the production of ammonia and other chemicals, in the hydrogenation of fats and oils, and in welding) | |
| hydrogensulfid | hydrogen sulphide (Flammable, poisonous gas with characteristic odour of rotten eggs, perceptible in air in a dilution of 0.002 mg/l. It is used as a reagent in chemical analysis; extremely hazardous; collapse, coma and death from respiratory failure may come within a few seconds after one or two inspirations; low concentrations produce irritation of conjunctiva and mucous membranes. Headache, dizziness, nausea, lassitude may appear after exposure, H2S) | |
| hydrogeologi | hydrogeology (The science dealing with the occurrence of surface and ground water, its utilization, and its functions in modifying the earth, primarily by erosion and deposition) | |
| hydrografi | hydrography (Science which deals with the measurement and description of the physical features of the oceans, lakes, rivers, and their adjoining coastal areas, with particular reference to their control and utilization) | |
| hydrografisk basseng | hydrographic basin (1. The drainage basin of a stream. 2. An area occupied by a lake and its drainage basin) | |
| hydrokarbon | hydrocarbon (A very large group of chemical compounds composed only of carbon and hydrogen) | |
| hydrokultur | hydroculture (Growing plants without soil but in sand or vermiculite or other granular material, using a liquid solution of nutrients to feed them) | |
| hydrologi | hydrology (The science that treats the occurrence, circulation, distribution, and properties of the waters of the earth, and their reaction with the environment) | |
| hydrologisk katastrofe | hydrologic disaster (Violent, sudden and destructive change either in the quality of the earth's water or in the distribution or movement of water on land, below the surface or in the atmosphere) | |
| hydrologisk kretsløp | hydrologic cycle (The movement of water between the oceans, ground surface and atmosphere by evaporation, precipitation and the activity of living organisms, as one of the mayor biogeochemical cycles. Each day water evaporates from the oceans and is carried in the air from the sea over the land, which receives it as precipitation, and finally returns from the land to the sea through rivers, thus completing the cycle) | |
| hydrolyse | hydrolysis (1. Decomposition or alteration of a chemical substance by water. 2. In aqueous solutions of electrolytes, the reactions of cations with water to produce a weak base or of anions to produce a weak acid) | |
| hydrometeorologi | hydrometeorology (That part of meteorology of direct concern to hydrologic problems, particularly to flood control, hydroelectric power, irrigation, and similar fields of engineering and water resource) | |
| hydrometri | hydrometry (The science and technology of measuring specific gravities, particularly of liquids) | |
| hydrosfære | hydrosphere (The waters of the Earth, as distinguished from the rocks (lithosphere), living things (biosphere), and the air (atmosphere). Includes the waters of the ocean; rivers, lakes, and other bodies of surface water in liquid form on the continents; snow, ice, and glaciers; and liquid water, ice, and water vapour in both the unsaturated and saturated zones below the land surface. Included by some, but excluded by others, is water in the atmosphere , which includes water vapour, clouds, and all forms of precipitation while still in the atmosphere) | |
| hygiene | hygiene (The science that deals with the principles and practices of good health) | |
| hygienisk tiltak | sanitation (The study and use of practical measures for the preservation of public health) | |
| hypertekst | hypertext (The organization of information units typically containing visible links that users can select or click with a mouse pointer or some other computer device to automatically retrieve or display other documents) | |
| hytte | country lodge (A small house or a hut located in the countryside) | |
| identifisering av forurensningskilde | pollutant source identification |