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Terms for subject Environment (6671 entries)
phasing out kivonás
phenol (A white crystalline soluble poisonous acidic derivative of benzene, used as an antiseptic and disinfectant and in the manufacture of resins, nylon, dyes, explosives and pharmaceuticals) fenol
pheromone (Any substance secreted by an animal which influences the behaviour of other individuals of the same species) feromon
philosophy (The academic discipline concerned with making explicit the nature and significance of ordinary and scientific beliefs and investigating the intelligibility of concepts by means of rational argument concerning their presuppositions, implications, and interrelationships; in particular, the rational investigation of the nature and structure of reality (metaphysics), the resources and limits of knowledge (epistemology), the principles and import of moral judgment (ethics), and the relationship between language and reality (semantics)) filozófia
phosphate (1. Generic term for any compound containing a phosphate group. 2. Any salt or ester of any phosphoric acid, especially a salt of orthophosphoric acid) foszfát
phosphate removal (Replacement of phosphate in detergents by environmentally safer substances, such as zeolite. The substitute will not act as a nutrient, and so will not cause eutrophication as a result of the accelerated growth of plants and microorganisms if it is released into waterways) foszfáteltávolítás
phosphate substitute (All substances that are able to substitute phosphate compounds in detergents; they must have the same chemical and physical properties and must be less polluting for the environment) foszfáthelyettesítő
phosphatic fertiliser (Fertilizer compound or mixture containing available (soluble) phosphate; examples are phosphate rock (phosphorite), superphosphates or triple superphosphates, nitrophosphate, potassium phosphate, or N-P-K mixtures) foszfátműtrágya
photochemical agent (Agents which trigger off photochemical reactions) fotokémiai szer
photochemical effect (The result or consequence of a chemical reaction caused by light or ultraviolet radiation) fotokémiai hatás
photochemical oxidant (Any of the chemicals which enter into oxidation reactions in the presence of light or other radiant energy) fotokémiai oxidálószer
photochemical pollution (Air pollution containing ozone and other reactive chemical compounds formed by the action of sunlight on nitrogen oxides and hydrocarbons, especially those in automobile exhaust) fotokémiai szennyezés
photochemical product (Degradation products that are produced by the action of light radiation) fotokémiai termék
photochemical reaction (Chemical reaction which is initiated by light of a specific wavelength. In an environmental context an example is the potential action of ultraviolet light on CFCs which may bring about the detrimental degradation of the ozone layer. Photochemical reactions initiate the process of photosynthesis in which plants convert carbon dioxide into sugars, which are incorporated into cell materials) fotokémiai reakció
photochemical smog (A combination of fog and chemicals that come from automobile and factory emissions and is acted upon by the action of the sun. Nitrogen dioxide, in the presence of the sun and some hydrocarbons, is turned into nitric oxide and atomic oxygen. The atomic oxygen reacts with the oxygen molecules and other constituents of automobile exhaust fumes to form a variety of products including ozone. The ozone is harmful in itself and is also implicated in a highly complex series of continuing reactions. As long as there is ozone or nitrogen dioxide and sunlight present, other undesirable reactions will occur) fotokémiai szmog
photodegradation (The capability of being decomposed by prolonged exposure to light) fotokémiai lebomlás
photogrammetry (The process of making measurements from photographs, used especially in the construction of maps from aerial photographs and also in military intelligence, medical and industrial research, etc.) fotogrammetria
photograph (An image captured by a camera or some other device and reproduced as a picture, usually on a sensitized surface and formed by the chemical action of light or of radiant energy) fénykép
photography (The process of forming visible images directly or indirectly by the action of light or other forms of radiation on sensitive surfaces) fényképezés
photosynthesis (The process by which plants transform carbon dioxide and water into carbohydrates and other compounds, using energy from the sun captured by chlorophyll in the plant. Oxygen is a by-product of the process. Photosynthesis is the essence of all plant life (autotrophic production) and hence of all animal life (heterotrophic production) on the planet Earth. The rate of photosynthesis depends on climate, intensity and duration of sunlight, available leaf area, soil nutrient availability, temperature, carbon dioxide concentration, and soil moisture regimes) fotoszintézis