n. 茧;卵囊
vt. 把……紧紧包住
cocoon 茧,保护膜
词源同conch, 蛤蜊。-oon, 大词后缀。即比喻被硬壳保护的。
A lady with an enchanting name, Faith Popcorn, has identified a menacing new American behavior that she gives the sweet name of 'cocooning.' It threatens the nation's pursuit of happiness, sometimes called the economy. [George Will, April 1987]Related: Cocooned; cocooning.