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| Terms for subject Environment (20791 entries) |
| υδροπονική | hydroponics | |
| υδρορρόη | valley (Any low-lying land bordered by higher ground; especially an elongate, relatively large, gently sloping depression of the Earth's surface, commonly situated between two mountains or between ranges of hills or mountains, and often containing a stream with an outlet. It is usually developed by stream erosion, but may be formed by faulting) | |
| υδρόσφαιρα | 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) | |
| υδροϋάκυνθος | water hyacinth (Floating aquatic plant, Eichornia crassipes of tropical America, having showy bluish-purple flowers and swollen leafstalks: family Pontederiaceae. It forms dense masses in rivers, ponds, etc., and is a serious pest in the southern U.S., Java, Australia, New Zealand, and parts of Africa) | |
| υδροφθοράνθρακας | fluorinated hydrocarbon | |
| υδροφθοράνθρακας | fluorohydrocarbon | |
| υδρόφοβος | water-repellent | |
| υδροφόρος | aquifer | |
| υδροφόρος | aquifer (Layers of rock, sand or gravel that can absorb water and allow it to flow. An aquifer acts as a groundwater reservoir when the underlying rock is impermeable. This may be tapped by wells for domestic, agricultural or industrial use. A serious environmental problem arises when the aquifer is contaminated by the seepage of sewage or toxins from waste dumps. If the groundwater in coastal areas is over-used salt water can seep into the aquifer) | |
| υδροφόρος ορίζοντας | aquifer | |
| Υδροφόρος ορίζοντας | groundwater table | |
| υδροφόρος ορίχοντας | water table (Water that occupies pores, cavities, cracks and other spaces in the crustal rocks. It includes water precipitated from the atmosphere which has percolated through the soil, water that has risen from deep magmatic sources liberated during igneous activity and fossil water retained in sedimentary rocks since their formation. The presence of groundwater is necessary for virtually all weathering processes to operate. Phreatic water is synonymous with groundwater and is the most important source of any water supply) | |
| υδροφράκτης | sluice-gate (A valve or gate fitted to a sluice to control the rate of flow of water) | |
| υδροφράκτης | sluice-gate | |
| Υδροχλωρικό οξύ | hydrochloric acid | |
| υδροχλωρικό οξύ | hydrochloric acid (A solution of hydrogen chloride gas in water; a poisonous, pungent liquid forming a constant-boiling mixture at 20% concentration in water; widely used as a reagent, in organic synthesis, in acidizing oil wells, ore reduction, food processing, and metal cleaning and pickling. Also known as muriatic acid, HCl) | |
| υδροχλωροφθοράνθρακας | hydrochlorofluorocarbon | |
| υδροχλωροφθοράνθρακας [γερμανικό αρκτικόλεξο] | H-FCKW (D) | |
| ύδωρ βλάστησης | vegetable water | |
| ύδωρ οικιακής χρήσεως' νερό οικιακής χρήσεως | domestic water |