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| Terms for subject Environment (6528 entries) |
| chlorination (The application of chlorine to water, sewage or industrial wastes for disinfection or other biological or chemical purposes) | chlorinimas | |
| chlorine (A very reactive and highly toxic green, gaseous element, belonging to the halogen family of substances. It is one of the most widespread elements, as it occurs naturally in sea-water, salt lakes and underground deposits, but usually occurs in a safe form as common salt (NaCl). Commercially it is used in large quantities by the chemical industry both as an element to produce chlorinated organic solvents, like polychlorinated biphenyls (PCBs), and for the manufacture of polyvinyl chloride plastics, thermoplastic and hypochlorite bleaches. Chlorine was the basis for the organochlorine pesticides, like DDT and other agricultural chemicals that have killed wildlife. The reactivity of chlorine has proved disastrous for the ozone layer and has been the cause of the creation of the ozone hole, which was first detected in the Southern Hemisphere over Antarctica and then over the Northern Hemisphere) | chloras | |
| chlorodifluoromethane | freonas 22 | |
| chlorodifluoromethane | chlordifluormetanas | |
| chloroethylene (A flammable, explosive gas with an ethereal aroma; soluble in alcohol and ether, slightly soluble in water; boils at -14° C; an important monomer for polyvinyl chloride and its copolymers; used in organic synthesis and in adhesives) | chloretilenas | |
| chlorofluorocarbon (Gases formed of chlorine, fluorine, and carbon whose molecules normally do not react with other substances; they are therefore used as spray can propellants because they do not alter the material being sprayed) | chlorfluormetanas | |
| chlorophenol (Major group of chlorinated hydrocarbons, pesticides and biocides which account for a very high percentage of the non-agricultural pesticide use, such as anti-rotting agents in non-woollen textiles and wood preservatives. The chlorophenols act as biocides by inhibiting the respiration and energy-conversion processes of the microorganisms. They are toxic to man above 40 parts per million, to fish above 1 ppm, whilst concentrations as low as one part per thousand million can taint water) | chlorfenolis | |
| chlorophyll (A green pigment, present in algae and higher plants, that absorbs light energy and thus plays a vital role in photosynthesis. Except in Cyanophyta (blue-green algae), chlorophyll is confined to chloroplasts. There are several types of chlorophyll, but all contain magnesium and iron. Some plants (e.g., brown algae, red algae, copper beech trees) contain additional pigments that masks the green of their chlorophyll) | chlorofilas | |
| chlorosis (A disease condition of green plants seen as yellowing of green parts of the plants) | chlorozė | |
| chordate (The highest phylum in the animal kingdom, characterized by a notochord, nerve cord, and gill slits; includes the urochordate, lancelets and vertebrates) | chordinis gyvūnas | |
| chorology (The study of the causal relations between geographical phenomena occurring within a particular region) | chorologija | |
| chromatographic analysis (The analysis of chemical substances that are poured into a vertical glass tube containing an adsorbent where the various components of the substance move through the adsorbent at different rates of speed according to their degree of attraction to it, thereby producing bands of color at different levels of the adsorption column) | chromatografinė analizė | |
| chromatography (A method of separating and analyzing mixtures of chemical substances by selective adsorption in a column of powder or on a strip of paper) | chromatografija | |
| chromium (A hard grey metallic element that takes a high polish, occurring principally in chromite: used in steel alloys and electroplating to increase hardness and corrosion-resistance) | chromas | |
| chrysophyta (The golden-brown and orange-yellow algae; a diverse group of microscopically small algae which inhabit fresh and salt water, many being planktonic. They contain carotenoid pigments and may be unicellular, colonial, filamentous or amoeboid) | auksadumblis | |
| church (A building for religious activities) | bažnyčia | |
| cinematographic film (Any motion picture of a story, drama, episode or event, often considered as an art form or used as a medium for entertainment) | kino filmas | |
| circular mail (A memorandum, letter or notice in either paper or electronic format distributed widely throughout an organization or to a general list of interested parties) | aplinkraštis | |
| citizen (A native or naturalized member of a state or nation who owes allegiance, bears responsibilities and obtains rights, including protection, from the government) | pilietis | |
| citizen awareness (State of citizens of being aware of their civic obligations) | piliečių sąmoningumas |