云霧(wu)纏繞的龍(long)(long)。漢王充《論衡·亂龍(long)(long)》:“董仲(zhong)舒申《春(chun)秋(qiu)》之雩,設土龍(long)(long)以(yi)招雨,其意(yi)以(yi)云龍(long)(long)相致。” 五(wu)代(dai)齊(qi)己《春(chun)雨》詩:“云龍(long)(long)相得起(qi),風電一時來。” 前蜀杜光(guang)庭《天冊巡官何(he)文濟為東院(yuan)生(sheng)日齋詞(ci)》:“猶風虎以(yi)相須,若云龍(long)(long)而(er)感契。”《易·乾》:“云從(cong)龍(long)(long),風從(cong)虎,圣人作而(er)萬(wan)物睹。”孔穎達疏(shu):“龍(long)(long)是(shi)(shi)(shi)水(shui)(shui)畜(chu),云是(shi)(shi)(shi)水(shui)(shui)氣,故龍(long)(long)吟則景(jing)云出,是(shi)(shi)(shi)云從(cong)龍(long)(long)也(ye)。”后因以(yi)“云龍(long)(long)”比喻(yu)君臣風云際會。宋(song)陸游《太師魏國史公挽歌詞(ci)》:“云龍(long)(long)際千載,典冊冠三公。”