1. An alloy of iron and nickel having a low coefficient of thermal expansion; used in tuning forks and measuring tapes and other instruments

Type of: alloy, metal

Encyclopedia: Invar

• ping-pong ball
• ping-pong table
• pinger
• pingo
• pingpong paddle
• pinguecula
• Pinguicula
• pinguid
• Pinguinus
• Pinguinus impennis
• pinhead
• pinhole
• Pinicola
• Pinicola enucleator
• pining
• pinion
• pinion and crown wheel
• pinion and ring gear
• pinioned
• pinite
• pink
• pink bollworm
• pink calla
• pink cockatoo
• pink disease