verb.
To reduce the moisture in a body of air; to lower the humidity.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
verb.
make less humid
Word Usage
"ÂTheir design uses two liquid desiccant waterfalls inside the house to dehumidify household air and uses heat captured by the solar thermal system to process and reuse the desiccant in the waterfalls. read the whole story on their blog"