artefact or artifact /ärˈti-fakt/

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

• calculating machines
• calculation
• calculational
• calculations
• calculative
• calculator
• calculators
• calculi
• calculose
• calculous
• calculus
• calculuses
• calculus of finite differences
• caldaria
• caldarium
• caldera
• calderas
• caldron
• caldrons
• Caledonian
• calefacient
• calefacients
• calefaction
• calefactions
• calefactive