verb. free from mist.
- heat up
Example sentences of the word defog
1. Verb, base form
The circulation of outer air alone will often be enough to defog the windshield without the heater-air conditioner.
2. Verb, non-3rd person singular present
In that case, you should install a fan, but until you do, keep the bathroom door open after each shower at least until the mirrors defog.