1) coolantNoun
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A fluid agent (gas or liquid) that produces cooling; especially one used to cool a system by transferring heat away from one part to another. He added more coolant to the car's radiator. The atomic reactor used a gas coolant. Lathe operators use an emulsion of oil and water as a coolant for the cutting tool. | ٹھنڈا کرنے والا مادہ |