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A sudden slowing in the rate of temperature increase in a metal being heated, caused by endothermic structural changes and resulting in a darkening of the metal.
[From de- + Latin calēscere, to become warm, inchoative of calēre, to be warm; see kelə- in Indo-European roots.]
(Chemistry) the absorption of heat when a metal is heated through a particular temperature range, caused by a change in internal crystal structure
[C19: from Late Latin dēcalescere to become warm, from Latin de- + calescere, from calēre to be warm]
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|Noun||1.||decalescence - phenomenon that occurs when a metal is being heated and there is a sudden slowing in the rate of temperature increase; slowing is caused by a change in the internal crystal structure of the metal|
physical phenomenon - a natural phenomenon involving the physical properties of matter and energy