cerulean

• cærulean

From Latin caeruleus (“blue”), from caelum (“sky, heaven”) +‎ -uleus (diminutive suffix). Cognate with Old English hār (“grey”). More at hoar.

• IPA^(key): /səˈɹuːli.ən/

• Audio (US)

  (file)

• Hyphenation: ce‧ru‧le‧an

cerulean (countable and uncountable, plural ceruleans)

1. (countable and uncountable) A greenish-blue color.

   cerulean colour:  

   • 2014, William H. Gass, On Being Blue: A Philosophical Inquiry, page 59:

     For our blues we have the azures and ceruleans, lapis lazulis, the light and dusty, the powder blues, the deeps: royal, sapphire, navy, and marine […]

2. (countable) A butterfly in the lycaenid genus Jamides.

cerulean (comparative more cerulean, superlative most cerulean)

A cerulean sky.

1. sky-blue.
   • 1920, Peter B. Kyne, The Understanding Heart, Chapter II

     As far to the west as Monica could see, her world was a sea of fog, … . Above it arched a cerulean sky; as the sun climbed to the zenith, …, the fog gradually took on a bluish tinge.

• (blues) blue; Alice blue, aqua, aquamarine, azure, baby blue, beryl, bice, bice blue, blue green, blue violet, blueberry, cadet blue, Cambridge blue, cerulean, cobalt blue, Copenhagen blue, cornflower, cornflower blue, cyan, Dodger blue, duck-egg blue, eggshell blue, electric-blue, gentian blue, ice blue, lapis lazuli, lovat, mazarine, midnight blue, navy, Nile blue, Oxford blue, peacock blue, petrol blue, powder blue, Prussian blue, robin's-egg blue, royal blue, sapphire, saxe blue, slate blue, sky blue, teal, turquoise, ultramarine, Wedgwood blue, zaffre ^{(Category: en:Blues)}

• Laurence, crenulae