cocoon /kəˈkuːn/noun 2verb 2forms 3 noun2 •The silky case spun by the larvae of some insects in which they metamorphose, protecting the pupa within. •Any similar protective case.The bad guys generally don’t like to get on trains, because they’re trapped on a moving cocoon that the CTA controls. — 1997 verb2 •To envelop in a protective case.Vern grabbed the throw draped over the back of the sofa and cocooned herself within it. — 2021 •To withdraw into such a case. formscocooned · cocooning · cocoons
