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

• triathlon
• triathlons
• triatic
• triatics
• triatic stay
• triatic stays
• triatomic
• triatomically
• triaxial
• triaxials
• triaxon
• triaxons
• triazine
• triazines
• triazole
• triazoles
• tribade
• tribades
• tribadic
• tribadies
• tribadism
• tribadisms
• tribady
• tribal
• tribalism