1. Not damaging to the environment, or directed at preventing environmental damage
   - green, environmentally-friendly

Encyclopedia: Eco-friendly

• horn button
• horn fly
• horn in
• Horn of Africa
• horn of plenty
• horn poppy
• horn-rimmed
• horn-shaped
• hornbeam
• hornbill
• hornblende
• hornbook
• Horne
• horned
• horned asp
• horned chameleon
• horned dinosaur
• horned lizard
• horned owl
• horned pondweed
• horned poppy
• horned pout
• horned puffin
• horned rattlesnake
• horned screamer