calliper
cal·li·per [calliper callipers] noun (BrE) (also cali·per NAmE, BrE)BrE [ˈkælɪpə(r)] ; NAmE [ˈkælɪpər]
1. callipersplural an instrument with two long thin parts joined at one end, used for measuring the ↑diameter of tubes and round objects (= the distance across them)
•a pair of callipers
2. (BrE) (NAmE brace)countable, usually plural a metal support for weak or injured legs
See also: ↑brace ▪ ↑caliper
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