artefact or artifact /ärˈti-fakt/

1. A thing made by human workmanship
2. Any non-natural feature accidentally introduced, eg during a scientific study

artefacˈtual adjective

• natrons
• nats
• NATS
• natter
• nattered
• natterer
• natterers
• nattering
• natterjack
• natterjacks
• natters
• nattery
• nattier
• nattier blue
• nattiest
• nattily
• nattiness
• nattinesses
• natty
• natura
• naturae
• natural
• natural abundance
• natural background
• natural-born