| Noun | 1. | cocoon - silky envelope spun by the larvae of many insects to protect pupas and by spiders to protect eggs | |
| Verb | 1. | cocoon - retreat as if into a cocoon, as from an unfriendly environment; "Families cocoon around the T.V. set most evenings"; "She loves to stay at home and cocoon"retreat - move away, as for privacy; "The Pope retreats to Castelgondolfo every summer" | |
| 2. | cocoon - wrap in or as if in a cocoon, as for protection | |