A device or machine that removes air or oxygen from liquids, commonly used in boilers and industrial systems.
From 'deaerate' + '-or' suffix (agent noun). The '-or' or '-er' suffix creates nouns for things or people that perform the action of the base verb.
Deaerators are unsung heroes in power plants—they remove oxygen from water before it enters boilers, preventing rust that would destroy massive industrial equipment!
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