coel- or coelo- (also N American cel- or celo-) /sēl- or sē-lō-/

Denoting a cavity, or hollow part

• redfish
• redfishes
• red flag
• red flags
• red fox
• red foxes
• red game
• red giant
• red giants
• red grouse
• Red Guard
• Red Guards
• red gum
• red gums
• red-haired
• red hand
• redhanded
• red hat
• red hats
• redhead
• red-headed
• redheads
• red heat
• red-heeled
• red herring