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| Terms for subject Environment (5179 entries) |
| ocean-air interface (The sea and the atmosphere are fluids in contact with one another, but in different energy states - the liquid and the gaseous. The free surface boundary between them inhibits, but by no means totally prevents, exchange of mass and energy between the two. Almost all interchanges across this boundary occur most effectively when turbulent conditions prevail. A roughened sea surface, large differences in properties between the water and the air, or an unstable air column that facilitates the transport of air volumes from sea surface to high in the atmosphere. Both heat and water (vapor) tend to migrate across the boundary in the direction from sea to air. Heat is exchanged by three processes: radiation, conduction, and evaporation. The largest net exchange is through evaporation, the process of transferring water from sea to air by vaporization of the water) | interfície oceà-aire | |
| Oceania (The islands of the southern, western and central Pacific Ocean, including Melanesia, Micronesia, and Polynesia. The term is sometimes extended to encompass Australia, New Zealand, and the Malay Archipelago) | Oceania | |
| oceanic climate (A regional climate which is under the predominant influence of the sea, that is, a climate characterized by oceanity; the antithesis of a continental climate) | clima oceànic | |
| oceanography (The scientific study and exploration of the oceans and seas in all their aspects) | oceanografia | |
| odonate | odonat | |
| odour (The property of a substance affecting the sense of smell; any smell; scent; perfume) | olor | |
| odour nuisance | molèstia produïda pels olors | |
| off-peak commuting (Traveling back and forth regularly over some distance, outside of the hours of maximum traffic frequency) | adob fora d'hora punta | |
| off-peak travelling (Relating to travelling outside rush-hours to avoid overcrowding in public means of transport) | treball i mobilització fora d'hores crítiques | |
| off-peak working | treball fora d'hora punta | |
| off-site (Activities taking place or located away from the site) | fora de lloc | |
| offence against the environment (Unlawful acts against the environment, such as water contamination, hazardous waste disposal, air contamination, unpermitted installation of plants, oil spills, etc.) | agressió contra el medi ambient | |
| office (Any room, set of rooms or building used for the administration of government service, business transactions or other work related activities) | oficina | |
| official duty | deure oficial | |
| official hearing (Proceedings of relative formality, with definite issues of fact or of law to be tried, in which witnesses are heard and parties proceeded against have right to be heard) | audiència oficial | |
| offset policy (emissions trading, Policy whereby emissions from a proposed new or modified stationary source are balanced by reductions from existing sources to stabilise total emissions) | política compensatòria | |
| offshore mining (Oil extraction from platforms situated a short distance from the coast) | mineria marina | |
| offshore oil drilling (The act or process of extracting petroleum from deposits underlying the floor of the ocean or some other large body of water) | sondatge petrolier submarí | |
| oil and fat industry (Industry for the production and processing of edible oils and fats) | indústria d'olis i greixos | |
| oil binding agent (Highly absorbent agents used for physically removing spilled oil in case of leakages and oil accidents occurring in water bodies, industry, work-shops, on roads, etc. Materials that have been found useful for this service vary from simple, naturally occurring materials such as straw, sawdust, and peat to synthetic agents, such as polyurethane foam and polystyrene powder) | agent astringent de petroli |