An agent that produces cooling, especially a fluid that draws off heat by circulating through an engine or by bathing a mechanical part.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "coolant" in a sentence
"ALSO … many large facilities use adsorption air conditioners already (and duh the array can be used for heating as well), they could be taking the coolant from the concentrated PV array and using it to provide MOST of the input energy for their HVAC systems."
"Only the breathable air and supply of water as coolant is back charged against their hourly and daily production work quotas."
"Draining the coolant is done by removing the lower radiator hose from the motor followed by removing the drain bolts from the side of both cylinders."