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Glaucous

From Wikipedia, the free encyclopedia
Pale grey or bluish-green appearance of the surfaces of some plants
Not to be confused withGlaucus.
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Glaucous
 
About these coordinates     Color coordinates
Hex triplet#6082B6
sRGBB (r,g,b)(96, 130, 182)
HSV (h,s,v)(216°, 47%, 71%)
CIELChuv (L,C,h)(54, 51, 250°)
SourceISCC-NBS[1]
ISCC–NBS descriptorModerate blue
B: Normalized to [0–255] (byte)

Glaucous (from Latin glaucus, from Ancient Greek γλαυκός (glaukós) 'blue-green, blue-grey') is used to describe the pale grey orbluish-green appearance of the surfaces of some plants, as well as in the names of birds, such as theglaucous gull (Larus hyperboreus),glaucous-winged gull (Larus glaucescens),glaucous macaw (Anodorhynchus glaucus), andglaucous tanager (Thraupis glaucocolpa).

The termglaucous is also usedbotanically as anadjective to mean "covered with a greyish, bluish, or whitishwaxy coating or bloom that is easily rubbed off" (e.g. glaucous leaves).[2][3]

The first recorded use ofglaucous as a color name in English was in the year 1671.[4]

Examples

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Theepicuticular wax coating on matureplum fruit gives them a glaucous appearance. Another familiar example is found in the common grape genus (Vitis vinifera). Somecacti have a glaucous coating on their stem(s). Glaucous coatings arehydrophobic so as to preventwetting by rain. Theirwaxy character serves to hinder climbing of leaves, stem or fruit by insects. On fruits,glaucous coatings may function as a deterrent to climbing and feeding by small insects in favor of increased seed dispersal offered by larger animals such asmammals and birds.

Theblue-grey camouflage coloring of some species of birds and sea and land animals causes their appearance to blend with their surroundings, making their detection by predators or prey difficult.

See also

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References

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  1. ^"Retsof online version of ISCC-NBS Dictionary of Colo(u)r Names - Ga through Gz". November 22, 2012. Archived from the original on 22 November 2012.
  2. ^"Glaucous".The Free Dictionary. Farlex.Archived from the original on 12 June 2021. Retrieved22 February 2021.
  3. ^"glaucous".Collins. Collins English Library. Retrieved22 February 2021.
  4. ^"Glaucous, a.".Oxford English Dictionary. 2010.

External links

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Wikimedia Commons has media related toGlaucous leaves.
  • The dictionary definition ofglaucous at Wiktionary
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