Glau"cous (gl&add;"kŭs), a. [L. glaucus, Gr. glayko`s.] 1. Of a sea-green color; of a dull green passing into grayish blue. Lindley.

2. (Bot.) Covered with a fine bloom or fine white powder easily rubbed off, as that on a blue plum, or on a cabbage leaf. Gray.

• (colour) of a pale green colour with a bluish-grey tinge, especially when covered with a powdery residue
       *1955: I realised I was the only shopper in that rather eerie place where I moved about fishlike, in a glaucous aquarium. — Vladimir Nabokov, Lolita
       *1994: inside you could see the wires and cables that ran aft to the rudder and elevators and the cracked and curled and sunblacked leather of the seats and in their tarnished nickel bezels the glass of instrument dials glaucous and clouded from the pumicing of the desert sands. — Cormac McCarthy, The Crossing
  
• (colour) a pale green colour with a bluish-grey tinge.