1. (botany) outer tissue of bark; a protective layer of dead cells
   - cork

Derived forms: phellems

Type of: bark

• light-tight
• light-year
• lightbulb
• lighted
• lighten
• lighten up
• lightening
• lighter
• lighter-than-air
• lighter-than-air craft
• lighterage
• lighterman
• lightheaded
• lightheadedness
• lighthearted
• lightheartedness
• Lighthorse Harry Lee
• lighthouse
• lighthouse keeper
• lighting
• lighting circuit
• lighting fixture
• lighting industry
• lighting-up
• lightless