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| Terms for subject Environment (6528 entries) |
| chemical weapon (Chemical agents of warfare include all gaseous, liquid or solid chemical substances which might be employed because of their direct toxic effects on man and animals. Chemical weapons also include the chemical's precursors, the munitions and devices designed to deliver them, and any equipment specifically designed for their use in warfare. Nerve agents (chemicals of the same family as organophosphorous insecticides) are the most lethal of the classical chemical warfare agents, killing by poisoning the nervous system and disrupting bodily functions. Other chemical weapons include blister agents, vesicants, choking agents, etc.) | cheminis ginklas | |
| chemicals act | cheminių medžiagų teisės aktas | |
| chemisorption (The process of chemical adsorption) | cheminė adsorbcija | |
| chemistry (The scientific study of the properties, composition, and structure of matter, the changes in structure and composition of matter, and accompanying energy changes) | chemija | |
| Chernobyl | Černobylis | |
| chestnut (Any north temperate fagaceous tree of the genus Castanea, such as Castanea sativa, which produce flowers in long catkins and nuts in a prickly bur) | kaštainis | |
| child (A person below the age of puberty) | vaikas | |
| chimney (A vertical structure of brick, masonry, or steel that carries smoke or steam away from a fire, engine, etc.) | kaminas | |
| chimney height (The appropriate height for chimneys serving industrial combustion plants in order to avoid unacceptable pollution) | kamino aukštis | |
| chiropteran (Order of placental mammals comprising the bats having the front limbs modified as wings) | šikšnosparnis | |
| chloride (A compound which is derived from hydrochloric acid and contains the chlorine atom in the -1 oxidation state) | chloridas | |
| chlorinated | chlorintas | |
| chlorinated hydrocarbon (A class of persistent, broad-spectrum insecticides that linger in the environment and accumulate in the food chain. Among them are DDT, aldrin, dieldrin, heptachlor, chlordane, lindane, endrin, mirex, hexachloride, and toxaphene. In insects and other animals these compounds act primarily on the central nervous system. They also become concentrated in the fats of organisms and thus tend to produce fatty infiltration of the heart and fatty degeneration of the liver in vertebrates. In fishes they have the effect of preventing oxygen uptake, causing suffocation. They are also known to slow the rate of photosynthesis in plants. Their danger to the ecosystem resides in their rate stability and the fact that they are broad-spectrum poisons which are very mobile because of their propensity to stick to dust particles and evaporate with water into the atmosphere) | chlorintas angliavandenis | |
| 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 |