silky envelope spun by the larvae of many insects to protect pupas and by spiders to protect eggs
wrap in or as if in a cocoon
wrap in or as if in a cocoon, as for protection
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 as if into a cocoon, as from an unfriendly environment