emission electronegative adjective (of atoms) having negative electric charge and therefore tending to move towards a positive electric pole electronic adjective referring to, based on, operated by or involving the controlled conduction of electrons, especially in a vacuum, gas or semi-conducting material electron microscope noun a microscope that uses a beam of electrons instead of light. Abbr EM

electrostatic adjective referring to devices using the properties of static electrical charge electrostatic precipitator noun a device for collecting minute particles of dust suspended in gas by charging the particles as they pass through an electrostatic field element noun a chemical substance that cannot be broken down to a simpler substance (note: There are 110 named elements.)

elemental adjective in the form of a pure element elementary particle noun a particle that is smaller than an atom or forms part of an atom, e.g. an electron. Also called fundamental particle, subatomic particle elements plural noun the weather O protected from the elements elephant grass noun same as miscant-hus elevated adjective 1. raised to a higher place or position 2. increased O elevated concentrations of particles in the air eliminate verb 1. to get rid of or remove something that is not wanted O Mosquitoes were eliminated by spraying breeding grounds with oil. 2. to rule out a possibility O Bacteria were eliminated as a possible cause of the illness.

elimination noun 1. the removal of a problem 2. the removal of waste matter from the body 3. the process of ruling out a possibility O the elimination of possible sources of contamination □ by a process of elimination by removing possibilities one by one until only the most likely cause or answer is left

ELINCS abbr European List of Notified Chemical Substances elm noun a large hardwood tree that grows in temperate areas. Genus: Ulmus. i> Dutch elm disease

El Niño noun a phenomenon occurring every few years in the Pacific Ocean, where a mass of warm water moves from west to east, rising as it moves, giving very high tides along the Pacific coast of South America and affecting the climate eluviation noun the action of particles and chemicals leaching from the topsoil down into the subsoil eluvium noun gravel formed as rocks are broken down into fragments where they are lying. Compare alluvium ELV abbr end-of-life vehicle EM abbr electron microscope EMAS noun a voluntary scheme of the European Union in which commercial and other organisations are encouraged to assess their approach to environmental matters against a given set of criteria. Full form Eco-Management and Audit Scheme embankment noun a wall made along a river bank to prevent a river from overflowing embryo noun an organism that develops from a fertilised egg or seed, e.g. an animal in the first weeks of gestation or a seedling plant with cotyledons and a root (note: After eight weeks an unborn baby is called a fetus.)

embryonic adjective 1. referring to an embryo 2. in the first stages of development emergence noun 1. a gradual upward movement of a land mass 2. the germination of a seed emergency noun a dangerous situation in which immediate action needs to be taken O You should know the safety procedures to be taken in case of emergency. O After the earthquake, an emergency was declared.

emergent adjective 1. referring to a plant that is just starting to grow 2. referring to a country that is starting to become developed industrially emerging disease noun a new disease which is beginning to appear and affect human beings or wildlife emf abbr electromotive force emigration noun the movement of an individual out of an area. Opposite immigration emission noun 1. the sending out of matter, energy or signals O light emissions O One factor on which the operational range of a radio emission depends is the transmitted power. 2. a substance discharged into the air by an internal combustion engine or other device O Exhaust emissions contain pollutants. O Gas emissions can cause acid rain.

emission charge

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