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| Terms for subject Environment (5878 entries) |
| organic substance (Chemical compounds, based on carbon chains or rings and also containing hydrogen with or without oxygen, nitrogen, or other elements) | مادة عضوية | |
| organic waste (Waste containing carbon compounds; derived from animal and plant materials) | مخلفات عضوية | |
| organisation (Term used in commercial law, including a corporation, government or governmental subdivision or agency, business trust, estate, trust, partnership or association, two or more persons having a joint or common interest, or any other legal or commercial entity; law) | تنظيم | |
| organisation of teaching (A group or association of persons united to address the concerns, methods and professional status of instructors or educators) | تنظيم التعليم | |
| organisation of the legal system (The specific manner, form and institutions by which a government's ability to make, enforce and interpret laws are brought together into a coordinated whole) | تنظيم النظام القضائي | |
| organisation of work (The coordination or structuring of work practices and production processes in order to influence the way jobs are designed and performed in the workplace) | تنظيم العمل | |
| organism (An individual constituted to carry out all life functions) | كائن عضوي | |
| organochlorine compound (Organic compounds containing a C-Cl bond) | مركب كلورين عضوي | |
| organohalogen compound (Organic compounds containing a C-halogen bond) | مركب هالوجين عضوي | |
| organoleptic property (Properties that can be perceived by sense organs) | خاصية قابلة للاستشعار بالحواس | |
| organometallic compound (Molecules containing carbon-metal linkage; a compound containing an alkyl or aryl radical bonded to a metal) | مركب عضوي فلزي - مركب معدني عضوي | |
| organonitrogen compound (Organic compounds having a C-N bond) | مركب نيتروجيني عضوي | |
| organooxygen compound (Compounds, both aliphatic and aromatic, which have a C-O bond, including alcohols, aldehydes, etc.) | مركب أوكسجيني عضوي | |
| organophosphorous compound (Pesticides that contain phosphorous; short-lived, but some can be toxic when first applied) | مركب فوسفوري عضوي | |
| organosilicon compound (Any natural substance composed of two or more unlike atoms held together by chemical bonds and containing silicon, a non-metallic element often found in rocks or minerals) | مركب سيليكون عضوي | |
| organosulphur compound (One of a group of substances which contain both carbon and sulfur) | مركب كبريتي عضوي | |
| organotin compound (Chemical compounds used in anti-foulant paints to protect the hulls of boats and ships, buoys and pilings from marine organisms such as barnacles) | مركب قصدير عضوي | |
| ornithology (The branch of zoology that deals with the study of birds, including their physiology, classification, ecology, and behaviour) | علم الطيور | |
| orography (A rarely used word referring to the study of mountain systems and the depiction of their relief) | علم الجبال | |
| orthopteran (A heterogeneous order of generalized insects with gradual metamorphosis, chewing mouthparts, and four wings) | مستقيمات الأجنحة |