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

• packing case
• packing material
• packing needle
• packing nut
• packing plant
• packinghouse
• packman
• packrat
• packsack
• packsaddle
• packthread
• pact
• pad
• pad of paper
• padauk
• Padda
• Padda oryzivora
• padded
• padder
• padding
• paddle
• paddle steamer
• paddle-box
• paddle-shaped
• paddle-wheeler