fog·dog 
(fôgdôg′, -dŏg′, fŏg-)
(fôgdôg′, -dŏg′, fŏg-)n.
A bright or clear spot that appears in breaking fog.
[From the fact that it accompanies fog as a dog accompanies its owner.]
- precipitant
- precipitantly
- precipitate
- precipitately
- precipitateness
- precipitation
- precipitative
- precipitator
- precipitin
- precipitinogen
- precipitous
- precipitously
- precipitousness
- precise
- precisely
- preciseness
- precisian
- precisianism
- precision
- precisionism
- precisionist
- preclinical
- preclude
- preclusion
- preclusive