1660s, with -an + Latin caeruleus "blue, dark blue, blue-green," perhaps dissimilated from caelulum, diminutive of caelum "heaven, sky," which is of uncertain origin (see celestial). The Latin word was applied by Roman authors to the sky, the Mediterranean, and occasionally to leaves or fields. As a noun, from 1756.
实用例句
1. Description: Beautiful Cerulean Blue ribbed silk with a box print in Berry, Midnight, and Gold.
Description框: 美丽的蓝色带肋与西鲁林在贝里, 午夜, 丝绸和盒印刷金.
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2. And then I think it was Yves St Laurent , wasn't it, who showed cerulean military jackets?
