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

• ventiges
• ventil
• ventilable
• ventilate
• ventilated
• ventilates
• ventilating
• ventilation
• ventilations
• ventilative
• ventilator
• ventilators
• ventilatory
• ventils
• venting
• ventings
• ventless
• ventose
• ventosities
• ventosity
• ventouse extraction
• ventouse extractions
• vent-peg
• vent-pegs
• vent-pipe