to remove the moisture from (air or another gas); to reduce the humidity of; as, The air conditioner dehumidifies the air in the summer.

The removal of moisture from the air.

the process of removing moisture from the air.

To reduce by any process the quantity of water vapor contained in a solid or gas.

To remove water vapor from an airstream in a duct.

to reduce, by any process, the quantity of water within the immediate atmosphere