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Meaning of regelation

re•ge•la•tion

Pronunciation: (rē"ju-lā'shun), [key]
— n. Physics.
  1. a phenomenon in which the freezing point of water is lowered by the application of pressure; the melting and refreezing of ice, at constant temperature, caused by varying the pressure.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.