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Azure; sky-blue.

[From Latin caeruleus, dark blue; akin to caelum, sky.]


(sɪˈruːlɪən) ,




a. a deep blue colour; azure
b. (as adjective): a cerulean sea.
[C17: from Latin caeruleus, probably from caelum sky]


(səˈru li ən)

adj., n.
deep blue; sky blue; azure.
[1660–70; < Latin caerule(us) dark blue (akin to caelum sky) + -an1]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cerulean - a light shade of blue
blue, blueness - blue color or pigment; resembling the color of the clear sky in the daytime; "he had eyes of bright blue"
Adj.1.cerulean - of a deep somewhat purplish blue color similar to that of a clear October skycerulean - of a deep somewhat purplish blue color similar to that of a clear October sky; "October's bright blue weather"
chromatic - being or having or characterized by hue
References in classic literature ?
The cut of this gentleman's mustache, with the two premature wrinkles in the cheek above it, and the fashion of his garments, in which an exposed shirt-front and a cerulean cravat played perhaps an obtrusive part, completed the conditions of his identity.
The moon, rising behind the rocks, unrolled a silver sheet on the cerulean carpet of the sea.
The street that they were following suddenly opened upon a wide avenue, and before them spread a broad and beautiful lagoon, the quiet surface of which mirrored the clear cerulean of the sky.
Like the rest of our waters, when much agitated, in clear weather, so that the surface of the waves may reflect the sky at the right angle, or because there is more light mixed with it, it appears at a little distance of a darker blue than the sky itself; and at such a time, being on its surface, and looking with divided vision, so as to see the reflection, I have discerned a matchless and indescribable light blue, such as watered or changeable silks and sword blades suggest, more cerulean than the sky itself, alternating with the original dark green on the opposite sides of the waves, which last appeared but muddy in comparison.
Looking round him, he there beheld a signboard on which the painter's art had delineated something remotely resembling a cerulean elephant with an aquiline nose in lieu of trunk.
Cerulean Pharma declared that the initial patient has been dosed in a trial discovering a dose-intensive schedule for its prime NDC, CRLX101, in patients with modern solid tumor malignancies.
However, we found no published accounts of songbirds adding new layers to their own nest within the same season except in response to brood parasitism, nor previous reports of Cerulean Warblers (Setophaga cerulea) engaging in this behavior.
com)-- Cerulean Skincare & Electrolysis opens inside M Studio in Incline Village, Nevada in January 2014.
Cerulean Jet today said it is the first private jet carrier to neutralize the carbon emissions for all of its chartered flights through the purchase of carbon offsets from Green Mountain Energy Company's eMission Solutions division.
AS night falls on thousands of classical musical lovers spread across the lawn of the Blossom Music Center--the summer home of the Cleveland Symphony Orchestra--a few concertgoers are fortunate enough to hear the call of the cerulean warbler in between movements.
Cerulean Warbler (Dendroica cerulea) populations have experienced serious declines in recent decades.