regelation

A scientist demonstrates regelation by cutting through a block of ice with a thin wire.

Definition

1. Noun:
   • The phenomenon of refreezing: "regelation" refers to the process by which ice that has been melted under pressure refreezes when the pressure is reduced. This is commonly observed in glaciers and when ice skates glide over ice.

Usage Examples

• Noun:
  • The regelation of ice allows glaciers to flow smoothly over uneven terrain. (The refreezing of melted ice under reduced pressure enables glacier movement.)
  • Scientists study regelation to understand how ice skates create a thin layer of water that refreezes instantly. (The refreezing process is key to skating mechanics.)

Advanced Usage

• "Regelation in glaciology": The process is critical in explaining how glaciers deform and move.
  • Regelation occurs when ice melts at the base of a glacier due to high pressure and then refreezes as the pressure decreases. (This cycle facilitates glacier flow.)

Variants and Related Words

• Regelate (verb): to undergo regelation; to melt under pressure and refreeze.

  • The ice will regelate as soon as the weight is removed. (The ice refreezes after pressure release.)

• Regelative (adj): relating to or characterized by regelation.

  • The regelative properties of ice are essential for glacial movement. (The refreezing characteristics are important.)

Synonyms

• Refreezing: the act of freezing again after melting.
• Pressure melting and refreezing: a descriptive phrase for the process.

Related Idioms

• None commonly used in everyday language; "regelation" is a technical term primarily in physics and geology.