cal ‧ li ‧ pers BrE AmE British English , calipers American English /ˈkæləpəz, ˈkælɪpəz $ -ərz/ noun [plural]
1 . a tool used for measuring thickness, or the distance between two surfaces, or the ↑ diameter (=inside width) of something
2 . British English metal bars that someone wears on their legs to help them walk SYN brace American English