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Radiation pollution (radioactive pollution or nuclear pollution) Pollution
caused by radioactive materials
Radical A group of atoms with a charge that goes through a reaction without
change is called a radical
Radon A radioactive gas emitted from soils and rock
Rangeland Unmanaged grasslands, savannas, shrub lands, and tundra
Reactivity The rate at which a chemical material tends to undergo a chemical
reaction
Real image Image formed in the plane of convergence rays of light that originate
from an object
Receptor-mediated endocytosis Engulfment of selected molecule combined with
receptor proteins by membranes
Reforestation Converting deforested area in to forest
Refractory disease Disease that resists treatment
Refuse Municipal solid waste
Regenerative braking Mechanism in which kinetic energy generated during
breaking in the vehicle is stored for future use
Rejects Residual waste
Remediation Correction or improvement of a problem
Residential waste Waste produce from residents
Residual waste Materials in the waste that are not compostable/recyclable
Residue Residual waste
Resolution of force Splitting a force into its components
Respirable particulate matter Particles that can enter lungs, usually particles less
than 10 μm diameter
Resultant of force A single force that has the same effect on the body as all the
forces acting together are having
Ribosome An organelle where biological protein synthesis is made
Risk Expected losses or possibility of injury, disease or death
Risk assessment A process that estimates the probability of exposed people can
have risk
RNA (ribonucleic acid) Nucleic acid molecule containing ribose
Rotational fluid flow Flow whose streamlines loop on themselves
Sandstorm/dust storm Wind with high speed with fine particles like sand
Scalar Physical quantity that has only magnitude but no direction
Sharps Sharp objects such as needles, syringes, and broken glassware
Shear strain Ratio of the length of deformation to perpendicular length in the
plane of the application of force
Simple diffusion Movement of molecules, atoms, or ions moves from higher concentration to lower concentration
Singleton Child born from a pregnancy with a single fetus
Sintering Process of forming a solid mass of material by heat/pressure without
melting it
Siting Process of selecting a location for a facility
Snowstorm A storm with large amounts of snow fall
Glossary
Radiation pollution (radioactive pollution or nuclear pollution) Pollution
caused by radioactive materials
Radical A group of atoms with a charge that goes through a reaction without
change is called a radical
Radon A radioactive gas emitted from soils and rock
Rangeland Unmanaged grasslands, savannas, shrub lands, and tundra
Reactivity The rate at which a chemical material tends to undergo a chemical
reaction
Real image Image formed in the plane of convergence rays of light that originate
from an object
Receptor-mediated endocytosis Engulfment of selected molecule combined with
receptor proteins by membranes
Reforestation Converting deforested area in to forest
Refractory disease Disease that resists treatment
Refuse Municipal solid waste
Regenerative braking Mechanism in which kinetic energy generated during
breaking in the vehicle is stored for future use
Rejects Residual waste
Remediation Correction or improvement of a problem
Residential waste Waste produce from residents
Residual waste Materials in the waste that are not compostable/recyclable
Residue Residual waste
Resolution of force Splitting a force into its components
Respirable particulate matter Particles that can enter lungs, usually particles less
than 10 μm diameter
Resultant of force A single force that has the same effect on the body as all the
forces acting together are having
Ribosome An organelle where biological protein synthesis is made
Risk Expected losses or possibility of injury, disease or death
Risk assessment A process that estimates the probability of exposed people can
have risk
RNA (ribonucleic acid) Nucleic acid molecule containing ribose
Rotational fluid flow Flow whose streamlines loop on themselves
Sandstorm/dust storm Wind with high speed with fine particles like sand
Scalar Physical quantity that has only magnitude but no direction
Sharps Sharp objects such as needles, syringes, and broken glassware
Shear strain Ratio of the length of deformation to perpendicular length in the
plane of the application of force
Simple diffusion Movement of molecules, atoms, or ions moves from higher concentration to lower concentration
Singleton Child born from a pregnancy with a single fetus
Sintering Process of forming a solid mass of material by heat/pressure without
melting it
Siting Process of selecting a location for a facility
Snowstorm A storm with large amounts of snow fall
Glossary