Definition of "winterization" [winterization]

• The process in which solid fats are removed from liquid edible oils by cooling; allows such oils to be stored in the refrigerator (noun)

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• "November 15 was the day the CHA began implementing its "winterization" program."
• ""Every year we carry out a 'winterization' program of the entire fleet, which to date has successfully protected our trains."
• "With these winterization tips, you'll save energy without spending much money (and you might even qualify for a $1,500 tax credit)."