brown study definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a condition of being deep in thought; reverie
Origin: origin, originally , somber thought ; from early sense of brown, somber, gloomy
brown study definition by American Heritage Dictionary
A state of deep thought.
Origin: brown, gloomy + study, mental state.