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Setting aside a highly radioactive material until the radioactivity has diminished to a desired level.



a decrease in body temperature in warm-blooded animals and humans as a result of heat emission that exceeds the formation of heat in the organism. Such a decrease may also result from derangement of the thermoregulatory mechanisms. Cooling is also called hypothermia.

References in periodicals archive ?
Scientists simply do not know whether the sun's output weakens and strengthens enough over the millennia to cause the coolings seen about every 2,600 years throughout the Holocene.
22, 1995 Science that the Holocene coolings recorded at Greenland occur about the same time as variations in the atm ospheric concentration of carbon-14, thought to reflect changes in the sun.
The cooling exceeds all other Holocene temperature changes recorded in GISP 2.