periderm /perˈi-dûrm/

1. The horny cuticular covering of a hydroid colony
2. The cork cambium with the cork and other tissues derived from it, forming a protective outer covering in plants

peridermˈal adjective

• unsupposable
• unsuppressed
• unsure
• unsured
• unsurer
• unsurest
• unsurfaced
• unsurmised
• unsurmountable
• unsurpassable
• unsurpassably
• unsurpassed
• unsurprised
• unsurprising
• unsurprisingly
• unsurveyed
• unsusceptible
• unsuspect
• unsuspected
• unsuspectedly
• unsuspectedness
• unsuspectednesses
• unsuspecting
• unsuspectingly
• unsuspectingness