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

• outtongues
• outtonguing
• outtook
• out to out
• outtop
• outtopped
• outtopping
• outtops
• out to stud
• outtravel
• outtraveled
• outtraveling
• outtravelled
• outtravelling
• outtravels
• out-tray
• out-trays
• outturn
• outturns
• out upon
• outvalue
• outvalued
• outvalues
• outvaluing
• outvenom