クイックシルバーMeanings1nounquicksilver; mercuryrare termRare loanword for the element mercury; the native term 水銀 is far more common.See also: 水銀クイックシルバーは水すい銀ぎんの古こ風ふうな呼よび方かただ。Quicksilver is an old-fashioned name for mercury.