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| Terms for subject Environment (5878 entries) |
| ammonia (A colorless gaseous alkaline compound that is very soluble in water, has a characteristic pungent odour, is lighter than air, and is formed as a result of the decomposition of most nitrogenous organic material, NH3) | أمونيا | |
| ammonification (Addition of ammonia or ammonia compounds, especially to the soil) | النشدرة | |
| ammonium (The radical NH4+, NH4) | أمونيوم | |
| amphibian (A class of vertebrate animals characterized by a moist, glandular skin, gills at some stage of development, and no amnion during the embryonic stage) | برمائيات | |
| amusement park (An open-air entertainment area consisting of stalls, side shows etc.) | حديقة ترفيهية | |
| anaerobic condition (A mode of life carried on in the absence of molecular oxygen) | ظرف لاهوائي | |
| anaerobic process (A process from which air or oxygen not in chemical combination is excluded) | عملية لاهوائية | |
| anaerobic treatment (Breakdown of organic material without the presence of oxygen, a treatment which permanently removes the unpleasant odour of many organic wastes so that they can be used on agricultural land) | معالجة لاحيوية هوائية | |
| analysis (Examination or determination) | تحليل | |
| analysis programme (No definition needed) | برنامج تحليل | |
| analytical chemistry (The branch of chemistry dealing with techniques which yield any type of information about chemical systems) | الكيمياء التحليلية | |
| analytical equipment (Equipment employed in analytical techniques) | أجهزة التحليل | |
| analytical method (No definition needed) | أسلوب التحليل | |
| anatomy (The science concerned with the physical structure of animals and plants) | تشريح | |
| angiosperm (The class of seed plants that includes all the flowering plants, characterized by the possession of flowers. The ovules, which become seeds after fertilization, are enclosed in ovaries. The xylem contains true vessels. The angiospermae are divided into two subclasses: Monocotyledoneae and Dycotiledoneae) | كاسيات البِزْر | |
| angling (The art or sport of catching fish with a rod and line and a baited hook or other lure, such as a fly) | الصيد بالصنارة | |
| animal (Any living organism characterized by voluntary movement, the possession of cells with noncellulose cell walls and specialized sense organs enabling rapid response to stimuli, and the ingestion of complex organic substances such as plants and other animals) | حيوان | |
| animal behaviour (Behaviour of animals in their normal environment, including all the processes, both internal and external, by which they respond to changes in their environment) | سلوك الحيوان | |
| animal biology (The scientific study of the natural processes of animals) | البيولوجيا الحيوانية | |
| animal conservatory (Areas for the conservation of rare or endangered animal species) | محمية حيوانية |