Other forms: dehumidified; dehumidifying; dehumidifies
When you take moisture out of the air, you dehumidify it. If there's mold growing in your damp basement, you might need to dehumidify things down there.
This verb describes a process of removing humidity, or dampness, from the air. If you want to dehumidify your house, you'll need a dehumidifier, a machine with the sole purpose of drying out the air in a room. Humidity isn't necessarily a bad thing, but excessive amounts of it can cause mildew and mold to grow and spread, especially when it's paired with high temperatures.