[ dee-fog, -fawg ]
/ diˈfɒg, -ˈfɔg /

verb (used with object), de·fogged, de·fog·ging.

to remove the fog or moisture from (a car window, mirror, etc.).
Informal. to make intelligible, specific, or obvious; clarify: In a lengthy interview the mayor defogged the issues in the transit strike.

Origin of defog

First recorded in 1900–05; de- + fog1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019