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

• excogitating
• excogitation
• excogitations
• excogitative
• excogitator
• excogitators
• excommunicable
• excommunicant
• excommunicants
• excommunicate
• excommunicated
• excommunicates
• excommunicating
• excommunication
• excommunicative
• excommunicator
• excommunicators
• excommunicatory
• excommunion
• excommunions
• ex concessis
• ex concesso
• ex consequenti
• ex converso
• excoriate