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1. Of a pale grayish or bluish green.
2. Botany Covered with a grayish, bluish, or whitish waxy coating or bloom that is easily rubbed off: glaucous leaves.

[Latin glaucus, from Greek glaukos.]

glau′cous·ness n.


1. (Botany) botany covered with a bluish waxy or powdery bloom
2. (Colours) bluish-green
[C17: from Latin glaucus silvery, bluish-green, from Greek glaukos]
ˈglaucously adv


(ˈglɔ kəs)

1. light bluish green or greenish blue.
2. covered with a whitish bloom, as a plum.
[1665–75; < Latin glaucus silvery, gray, bluish green < Greek glaukós; see -ous]
glau′cous•ly, adv.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.glaucous - having a frosted look from a powdery coating, as on plants; "glaucous stems"; "glaucous plums"; "glaucous grapes"
opaque - not transmitting or reflecting light or radiant energy; impenetrable to sight; "opaque windows of the jail"; "opaque to X-rays"


adj leavesmit einer weißlichen Schicht überzogen; glaucous blue/greengräulich blau/grün
References in classic literature ?
In the orchestra stalls, the drugget covering them looked like an angry sea, whose glaucous waves had been suddenly rendered stationary by a secret order from the storm phantom, who, as everybody knows, is called Adamastor.
As at Walden, in sultry dog-day weather, looking down through the woods on some of its bays which are not so deep but that the reflection from the bottom tinges them, its waters are of a misty bluish-green or glaucous color.
Instead of the white lily, which requires mud, or the common sweet flag, the blue flag (Iris versicolor) grows thinly in the pure water, rising from the stony bottom all around the shore, where it is visited by hummingbirds in June; and the color both of its bluish blades and its flowers and especially their reflections, is in singular harmony with the glaucous water.
Rapidly they open, the frilliest of all leaves, into a ground-hugging rosette, their colour gradually bleaching to glaucous grey-blue, their leaves becoming thicker and more succulent.
Our trip started at Anderton Marina, near Northwich, where we took possession of Glaucous Gull, a modern 66ft craft.
One of the best spurges, which will thrive happily in shade, is euphorbia martinii, a hybrid between euphorbia amygdaloides, our native wood spurge, and the glaucous Mediterranean euphorbia characias or wulfenii.
Dawn, glaucous, lays its wet face across the highway.
In this way, I might start with Nepeta with its blue/grey leaves and blue flowers and add a blue Geranium and Glaucous Hosta for a perfect spring to summer collection and next to that, summer flowering peony in any colour, with a similar coloured Phlox next to it for continuity later in the season.
though some, like the cerulean glaucous macaw, could not survive the
A 2010 study of glaucous gulls found that birds in northern Alaska towns rely heavily on human garbage, with up to 85 percent of regurgitated pellets and breeding-season bird remains including human leftovers.
This bold variegated Spurge has green foliage with a glaucous hue, edged in contrasting creamy-white.
Agave, Dudleys, Sencio--all those glaucous plants look fabulous in strong, bright light.