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| Terms for subject Environment (5878 entries) |
| هيدروكربون مكلور | chlorinated hydrocarbon (A class of persistent, broad-spectrum insecticides that linger in the environment and accumulate in the food chain. Among them are DDT, aldrin, dieldrin, heptachlor, chlordane, lindane, endrin, mirex, hexachloride, and toxaphene. In insects and other animals these compounds act primarily on the central nervous system. They also become concentrated in the fats of organisms and thus tend to produce fatty infiltration of the heart and fatty degeneration of the liver in vertebrates. In fishes they have the effect of preventing oxygen uptake, causing suffocation. They are also known to slow the rate of photosynthesis in plants. Their danger to the ecosystem resides in their rate stability and the fact that they are broad-spectrum poisons which are very mobile because of their propensity to stick to dust particles and evaporate with water into the atmosphere) | |
| هيدروكربونات دهنية | aliphatic hydrocarbon (Hydrocarbons having an open chain of carbon atoms, whether normal or forked, saturated or unsaturated) | |
| هَجَمَ على النار | attack a fire | |
| واجب رسمي | official duty | |
| وادي | 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) | |
| وادٍ عميق | canyon (A long deep, relatively narrow steep-sided valley confined between lofty and precipitous walls in a plateau or mountainous area, often with a stream at the bottom; similar to, but largest than, a gorge. It is characteristic of an arid or semiarid area (such as western U.S) where stream downcutting greatly exceeds weathering) | |
| وثيقة | chart (A formal written record of transactions, proceedings, etc., as of a society, committee, or legislative body; act) | |
| وثيقة | document (Material of any kind, regardless of physical form, which furnishes information, evidence or ideas, including items such as contracts, bills of sale, letters, audio and video recordings, and machine readable data files) | |
| وثيقة تنمية حضرية | urban development document (A written or printed text furnishing proposals or procedures for the improvement of living conditions, especially housing, for the inhabitants of a city or densely populated area) | |
| وحدة إشعال | burning block | |
| وحدة الحَرَس | guard unit | |
| وحدة القيادة | general staff | |
| وحدة حرق | burning block | |
| وحدة سياحية | touristic unit (No definition needed) | |
| وحدة غابات | forestry unit (Any entity or group of individuals involved with the creation, management and conservation of an extensive area of woodland, often to produce products and benefits such as timber, clean water, biodiversity and recreation) | |
| وحدة فرز المخلفات | waste sorting unit (Centralized recycling centres to which waste materials are brought and where they are separated) | |
| وحدة معالجة | treatment plant | |
| وحل | mud (A mixture of clay and/or silt with water to form a plastic mass with a particle size preponderantly below 0.06 mm diameter. It is deposited in low-energy environments in lakes, estuaries and lagoons. It may also be deposited in deep-sea environments; sediment) | |
| وحل | sludge (1. A soft, soupy, or muddy bottom deposit, such as found on tideland or in a stream bed. 2. A semifluid, slushy, murky mass of sediment resulting from treatment of water, sewage, or industrial and mining wastes, and often appearing as local bottom deposits in polluted bodies of water) | |
| وحل التطهير | clearing sludge |