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| Terms for subject Environment (5878 entries) |
| nuclear safety (Measures and techniques implemented to reduce the possibility of incidence and the potential harm posed by radioactive substances used as an energy source, a test material or in weaponry) | الأمان النووي | |
| nuclear test (Test performed to evaluate nuclear weapons) | اختبار نووي | |
| nuclear weapon (Any bomb, warhead, or projectile using active nuclear material to cause a chain reaction upon detonation) | سلاح نووي | |
| nucleic acid (Any of several organic acids combined with proteins (DNA or RNA) which exist in the nucleus and protoplasm of all cells) | حمض نووي | |
| nuisance (Anything that affects or prejudices health) | إزعاج | |
| nursery (plant breeding, Place where plants are grown until they are large enough to be planted in their final positions) | مشتل | |
| nursery garden | مشتل | |
| nutrient (Chemical elements which are involved in the construction of living tissue and which are needed by both plant and animal. The most important in terms of bulk are carbon, hydrogen and oxygen, with other essential ones including nitrogen, potassium, calcium, sulphur and phosphorus) | مادة مغذية | |
| nutrient balance (Condition in which there is equilibrium between intake and excretion of nutrients) | التوازن الغذائي | |
| nutrient content (The amount of proteins, carbohydrates, fats, inorganic salts (e.g. nitrates, phosphates), minerals (e.g. calcium, iron), and water) | المحتوى الغذائي | |
| nutrient cycle (A biogeochemical cycle, in which inorganic nutrients move through the soil, living organisms, air and water or through some of these) | دورة التغذية | |
| nutrient medium (A medium providing or contributing to nourishment) | وسيط تغذية | |
| nutrient removal (Elimination of nutrients as, for example, from sewage in order to prevent eutrophication of water in reservoirs) | إزالة المغذيات | |
| nutrition (A process in animals and plants involving the intake of nutrient materials and their subsequent assimilation into the tissues) | التغذية | |
| nutritive value of food (The measure of the quantity or availability of nutrients found in materials ingested and utilized by humans or animals as a source of nutrition and energy) | القيمة الغذائية للطعام | |
| oak (Any tree of the genus Quercus in the order Fagales, characterized by simple, usually lobed leaves, scaly winter buds, a star-shaped pith, and its fruit, the acorn, which is a nut; the wood is tough, hard, and durable, generally having a distinct pattern) | سنديان - بلوط | |
| objection (The act of a party who objects to some matter or proceeding in the course of a trial or an argument or reason urged by him in support of his contention that the matter or proceeding objected to is improper or illegal) | اعتراض | |
| obligation to inform | التزام بالإعلام | |
| obligation to label (The legal responsibility or duty compelling manufacturers to affix certain marks or other written identification to their products, as is directed by laws, regulations or government standards) | إلتزام بإلصاق بطاقة | |
| observation satellite (Man-made device that orbits the earth, receiving, processing and transmitting signals and generating images such as weather pictures) | قمر صناعي للمراقبة |