1. Large deeply rooted fern of worldwide distribution with upright bipinnate compound tufted fronds
   - royal fern, royal osmund, king fern, ditch fern, Osmunda regalis

Type of: flowering fern, osmund

• armored personnel carrier
• armored scale
• armored sea robin
• armored vehicle
• armorer
• armorial
• armorial bearing
• armory
• armour
• armour plate
• armour plating
• armour-bearer
• armour-clad
• armour-plated
• armoured
• armoured car
• armoured catfish
• armoured combat vehicle
• armoured personnel carrier
• armoured scale
• armoured sea robin
• armoured vehicle
• armourer
• armoury
• armpit