broch¹, also brogh or brough /brohh/

1. A dry-built circular tower of the late Iron Age with galleries in the thickness of the wall, common in Scotland, very rare elsewhere
2. A luminous ring around the moon

• retroactive
• retroactive inhibition
• retroactive interference
• retroactively
• retroactivities
• retroactivity
• retroacts
• retrobulbar
• retrocede
• retroceded
• retrocedent
• retrocedes
• retroceding
• retrocession
• retrocessionaire
• retrocessions
• retrocessive
• retrochoir
• retrochoirs
• retrocognition
• retrocognitions
• retrod
• retrodden
• retrofit
• retrofits