A large tower or similar structure typically attached to a power plant through which water is circulated to lower its temperature by partial evaporation.(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 "cooling tower" in a sentence
"You'd have a wooden thing they call a cooling tower and run the water through that to cool it off before it went into the pool."