glau·cous /ˈglɔkəs/
(a.)綠灰色的,藍綠色的,覆有白粉的
Glau·cous a.
1. Of a sea-green color; of a dull green passing into grayish blue.
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.
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glaucous
adj : having a frosted look from a powdery coating, as on plants;
"glaucous stems"; "glaucous plums"; "glaucous grapes"