cacoon / cocoon [kəˈku:n]
cacoon – n. – a tropical America plant, Fevillea cordifolia, of the family Cucubitaceae bearing seeds with cathartic qualities.
cocoon – n. & v. – n. – 1. a silky case spun by some insect larvae to protect the pupae; 2. anything that resembles this case; 3. a spray to protect metal from corrosion; v. 1. – form a protective environment; 2. spray metal with a protective coating