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| Terms for subject Environment (5949 entries) |
| osteko errekuntza | afterburning (An afterburner is a gadget fitted to the exhaust flues of furnaces and also to the exhaust systems of motor vehicles. They remove polluting gases and particles, which are the result of incompletely combusted fuel, by incineration and break down other chemical molecules associated with combustion into inert chemicals) | |
| osteko tratamendu | post-treatment (Treatment of treated water or wastewater to improve the water quality) | |
| ostra-hazkuntza | oyster farming (There are two types of oyster farming: suspension culture, in which oysters are grown off bottom, in floating trays, is a labor-intensive form of cultivation that requires continuous tending and cleaning of both gear and shellfish, and bottom culture, which is similar to conventional crop farming on land; it involves selecting areas of the sea floor that provide a natural food supply, necessary currents, minimum exposure to predators, and proper temperature and then "seeding" the bottom with shellfish stock that are left to grow to market size. Then they are harvested with a bottom drag from a boat. Both suspension culture and bottom culture depend on natural food supplies for growing the shellfish being raised) | |
| otordu laster | convenience food (Food so prepared and presented as to be easily and quickly ready for consumption) | |
| oxidatzaile | oxidising agent (Compound that gives up oxygen easily, removes hydrogen from another compound, or attracts negative electrons) | |
| oxidatzaile fotokimiko | photochemical oxidant (Any of the chemicals which enter into oxidation reactions in the presence of light or other radiant energy) | |
| oxidazio | oxidation (A chemical reaction that increases the oxygen content of a compound) | |
| oxidazio-erredukzio | oxidation-reduction (An oxidizing chemical change, where an element's positive valence is increased (electron loss), accompanied by a simultaneous reduction of an associated element (electron gain)) | |
| oxido | oxide (Binary chemical compound in which oxygen is combined with a metal or nonmetal) | |
| oxido metaliko | metal oxide (Any binary compound in which oxygen is combined with one or more metal atoms) | |
| oxigenazio | oxygenation (Treating with oxygen) | |
| oxigeno | oxygen (A gaseous chemical element; an essential element in cellular respiration and in combustion processes; the most abundant element in the earth's crust and about 20% of the air by volume) | |
| oxigeno disolbatu | dissolved oxygen (The amount of oxygen dissolved in a stream, river or lake is an indication of the degree of health of the stream and its ability to support a balanced aquatic ecosystem. The oxygen comes from the atmosphere by solution and from photosynthesis of water plants. The maximum amount of oxygen that can be held in solution in a stream is termed the saturation concentration and, as it is a function of temperature, the greater the temperature, the less the saturation amount. The discharge of an organic waste to a stream imposes an oxygen demand on the stream. If there is an excessive amount of organic matter, the oxidation of waste by microorganisms will consume oxygen more rapidly than it can be replenished. When this happens, the dissolved oxygen is depleted and results in the death of the higher forms of life) | |
| oxigeno-eduki | oxygen content (Amount of oxygen contained in a solution) | |
| oxigeno-falta | oxygen deficiency (No definition needed) | |
| Ozeania | Oceania (The islands of the southern, western and central Pacific Ocean, including Melanesia, Micronesia, and Polynesia. The term is sometimes extended to encompass Australia, New Zealand, and the Malay Archipelago) | |
| ozeano | ocean (The mass of water occupying all of the Earth's surface not occupied by land, but excluding all lakes and inland seas) | |
| Ozeano Antartiko | Antarctic Ocean (The waters, including ice shelves, that surround the continent of Antarctica, which comprise the southernmost parts of the Pacific, Atlantic and Indian oceans, and also the Ross, Amundsen, Bellingshausen and Weddell seas) | |
| Ozeano Artiko | Arctic Ocean (The smallest and most poorly studied of the oceans on earth. It covers an area of 14 million square km that is divided by three submarine ridges, i.e. the Alpha Ridge, the Lomonosov Ridge, and an extension of the mid-Atlantic ridge. It is also nearly landlocked, covered year-round by pack ice, and the third of its area is continental shelf) | |
| ozeano-zirkulazio | ocean circulation (Water current flow in a closed circular pattern within an ocean) |