cocoon / kokoon [kəˈku:n]
cocoon – n. & v. – 1. an envelop often composed largely of silk which the larvae of many insects form about themselves previous to changing to a pupa and in which they pass the pupa stage; 2. a long-term protective covering usually plastic placed or sprayed over a gun or other military or naval equipment in storage; v. tr. to wrap or envelop, especially tightly as if in a cocoon
kokoon – n. – a brindled gnu, Catoblepas taurinus, an African species of wildebeest