radiation -
the spread of a group of organisms into new habitats
natural action,
natural process,
activity,
action a process existing in or produced by nature (rather than by the intent of human beings); "the action of natural forces"; "volcanic activity"
spreading,
spread act of extending over a wider scope or expanse of space or time
radiation -
the act of spreading outward from a central source
emanation,
emission (theology) the origination of the Holy Spirit at Pentecost; "the emanation of the Holy Spirit"; "the rising of the Holy Ghost"; "the doctrine of the procession of the Holy Spirit from the Father and the Son"
radiation -
the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay
therapy (medicine) the act of caring for someone (as by medication or remedial training etc.); "the quarterback is undergoing treatment for a knee injury"; "he tried every treatment the doctors suggested"; "heat therapy gave the best relief"
medical specialty,
medicine the learned profession that is mastered by graduate training in a medical school and that is devoted to preventing or alleviating or curing diseases and injuries; "he studied medicine at Harvard"
phototherapy the use of strong light to treat acne or hyperbilirubinemia of the newborn
Radiation -
syndrome resulting from exposure to ionizing radiation (e.g., exposure to radioactive chemicals or to nuclear explosions); low doses cause diarrhea and nausea and vomiting and sometimes loss of hair; greater exposure can cause sterility and cataracts and some forms of cancer and other diseases; severe exposure can cause death within hours; "he was suffering from radiation"
Radiation -
The shooting forth of anything from a point or surface, like the diverging rays of light; as, the radiation of heat.
Radiation -
The process of radiating waves or particles.
Radiation -
The transfer of energy via radiation.
Radiation -
Radioactive energy.
Wikipedia
Radiation describes a process in which energetic particles or waves travel through a medium or space. There are two distinct types of radiation; ionizing and non-ionizing. The word radiation is commonly used in reference to ionizing radiation only (i.e.
OmegaWiki Dictionary
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Radiation Emission of any rays from either natural or man-made origins, such as radio waves, the sun's rays, medical X-rays and the fall-out and nuclear wastes produced by nuclear weapons and nuclear energy production. Radiation is usually divided between non-ionizing radiation, such as thermal radiation (heat) and light, and nuclear radiation. Non-ionizing radiation includes ultraviolet radiation from the sun which, although it can damage cells and tissues, does not involve the ionization events of nuclear radiation.\n(Source: WRIGHT)
