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| Terms for subject Environment (5878 entries) |
| dust immission | تركيز الغبار عند مستوى سطح الأرض | |
| dust removal (The removal of dust from air by ventilation or exhaust systems) | إزالة الغبار | |
| dustiness | التغبر | |
| duty week | أيام العمل الأسبوعية | |
| dwelling (Any enclosed space wholly or partially used or intended to be used for living, sleeping, cooking, and eating) | مأوى - مسكن | |
| dye (A coloring material) | صبغة | |
| dyke (An artificial wall, embankment, ridge, or mound, usually of earth or rock fill, built around a relatively flat, low-lying area to protect it from flooding; a levee. A dyke may be also be constructed on the shore or border of a lake to prevent inflow of undesirable water) | جسر - حاجز | |
| dyke reinforcement (The addition of material to strengthen the structure of the dykes) | تدعيم الجسور | |
| early warning system (Any series of procedures and devices designed to detect sudden or potential threats to persons, property or the environment at the first sign of danger; especially a system utilizing radar technology) | نظام إنذار مبكر | |
| earth science (The science that deals with the earth or any part thereof; includes the disciplines of geology, geography, oceanography and meteorology, among others) | علوم الأرض | |
| earth's crust (The outer layers of the Earth's structure, varying between 6 and 48 km in thickness, and comprising all the material above the Mohorovicic Discontinuity (a seismic discontinuity occurring between the crust of the earth and the underlying mantle; the discontinuity occurs at an average depth of 35 km below the continents and at about 10 km below the oceans). The earlier idea of a cool solid skin overlaying a hot molten interior has now been replaced by a concept of a crust composed of two shells: an inner basic unit composed of sima (oceanic crust) and an outer granitic unit composed of sial (continental crust)) | القشرة الأرضية | |
| Earth-Sun relationship (The Earth depends on the sun for its existence as a planet hospitable to life, and solar energy is the major factor determining the climate. Hence, conditions on the sun and conditions on Earth are inextricably linked. Although the sun's rays may appear unchanging, its radiation does vary. Many scientists suspect that sunspot activity has a greater influence on climatic change than variations attributed to the greenhouse effect) | العلاقة بين الأرض والشمس | |
| earthquake (The violent shaking of the ground produced by deep seismic waves, beneath the epicentre, generated by a sudden decrease or release in a volume of rock of elastic strain accumulated over a long time in regions of seismic activity (tectonic earthquake). The magnitude of an earthquake is represented by the Richter scale; the intensity by the Mercalli scale) | زلزال | |
| earthworm (Any of numerous oligochaete worms of the genera Lumbricus, Allolobophora, Eisenia, etc., which burrow in the soil and help aerate and break up the ground) | دودة الأرض | |
| earwig (Any of various insects of the order Dermaptera, especially Forficula auricularia, which typically have an elongated body with small leathery forewings, semicircular membranous hindwings, and curved forceps at the tip of the abdomen) | أبو المقص | |
| easement (The rights of use over the property of another; a burden on a piece of land causing the owner to suffer access by another) | الارتفاق | |
| East Africa (A geographic region of the African continent that includes Burundi, Kenya, Rwanda, Tanzania, Uganda, Ethiopia and Somalia, and also Mt. Kilimanjaro and Lake Victoria) | شرق أفريقيا | |
| East-West relations | العلاقات بين الشرق والغرب | |
| East-West trade (Trade between countries and companies of the Western hemisphere with those of the Eastern hemisphere (usually referring to former Communist countries of Eastern Europe)) | التجارة بين الشرق والغرب | |
| Eastern Asia (A geographic region of the Asian continent bordered by the Pacific Ocean in the east that includes China, Japan, Korea, Macao, Taiwan and Siberia) | شرق آسيا |