WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adjective.
of an achromatic color of any lightness intermediate between the extremes of white and black
Word Usage
"Now, for Chapalaberta meat aficionados from the Frozen Tundra who think a good steak should bark at them when placed on the grill, I must point out that Bubba stated the beef should be "greyish" not "green" which is not good."