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Contaminant Material that has an adverse effect on environment
Contamination The degradation of environment by contaminant
Convex lens Lenses which are thinner at edges and thicker at the middle
Convex mirror Mirror with reflective surfaces that curve outward
Coplanar forces Forces acting in the same plane are called coplanar forces
Co-processing (in the context of solid waste) Units where waste is used as a
source of energy, or raw material, or both
Coral bleaching The paling of colour of coral organisms which have hard external
limestone skeletons
Coral reefs Structures built by corals
Coulomb SI quantity of electricity transported in 1 second by a constant current
of 1 ampere
Criteria air pollutant Air pollutants for which ambient air quality standard has
been fixed
Crusher Equipment to break solid substance
Curb-side collection Method of accumulating waste on curb side
Cyclone Large-scale circulation of air in the atmosphere on top of the South Pacific
and Indian Oceans
Cyclone separator Air pollution control equipment used to separate particles by
centrifugal force
Cytoplasm Gel-like matrix present inside cell membrane containing nutrients,
water, wastes, enzymes, gases and cell structures
Decomposition The breakdown of complex organic substance by microorganisms
Deforestation Removing forest
Dengue fever An infectious viral disease spread by mosquitoes
Density Mass of fluid per unit volume
Dermal Referring to the skin
Dermatology Branch of study that deals with all the disorders of the inner mucous
membranes as well as outer skin
Desert A region of very low rainfall (<100 mm/year)
Dew point Temperature at which condensables begin to alter to a liquid state
Digestion The biochemical degradation of organic matter
Diode Electronic device that permits electric current to move through it in single
direction
Direct electric current (normally termed as direct current) Electric current
flowing only in one direction
Disaster An extreme hazard event that causes noteworthy disruption, damage and
casualties
Disaster management Systematic management to reduce impacts of disasters
Disaster preparedness Pre-planned actions to reduce the impact of disasters
Disaster recovery Actions taken after a disaster to restore the disaster-affected
community
Disaster rehabilitation Set of measures taken after a disaster to bring back to
disaster-affected community to normal life
Glossary
Contaminant Material that has an adverse effect on environment
Contamination The degradation of environment by contaminant
Convex lens Lenses which are thinner at edges and thicker at the middle
Convex mirror Mirror with reflective surfaces that curve outward
Coplanar forces Forces acting in the same plane are called coplanar forces
Co-processing (in the context of solid waste) Units where waste is used as a
source of energy, or raw material, or both
Coral bleaching The paling of colour of coral organisms which have hard external
limestone skeletons
Coral reefs Structures built by corals
Coulomb SI quantity of electricity transported in 1 second by a constant current
of 1 ampere
Criteria air pollutant Air pollutants for which ambient air quality standard has
been fixed
Crusher Equipment to break solid substance
Curb-side collection Method of accumulating waste on curb side
Cyclone Large-scale circulation of air in the atmosphere on top of the South Pacific
and Indian Oceans
Cyclone separator Air pollution control equipment used to separate particles by
centrifugal force
Cytoplasm Gel-like matrix present inside cell membrane containing nutrients,
water, wastes, enzymes, gases and cell structures
Decomposition The breakdown of complex organic substance by microorganisms
Deforestation Removing forest
Dengue fever An infectious viral disease spread by mosquitoes
Density Mass of fluid per unit volume
Dermal Referring to the skin
Dermatology Branch of study that deals with all the disorders of the inner mucous
membranes as well as outer skin
Desert A region of very low rainfall (<100 mm/year)
Dew point Temperature at which condensables begin to alter to a liquid state
Digestion The biochemical degradation of organic matter
Diode Electronic device that permits electric current to move through it in single
direction
Direct electric current (normally termed as direct current) Electric current
flowing only in one direction
Disaster An extreme hazard event that causes noteworthy disruption, damage and
casualties
Disaster management Systematic management to reduce impacts of disasters
Disaster preparedness Pre-planned actions to reduce the impact of disasters
Disaster recovery Actions taken after a disaster to restore the disaster-affected
community
Disaster rehabilitation Set of measures taken after a disaster to bring back to
disaster-affected community to normal life
Glossary