British spelling of calipers; a measuring instrument with two adjustable legs used to measure distances, diameters, and thicknesses.
Variant spelling of calipers, common in British English. Same etymology as calipers, possibly from French calibre or Arabic qâlib.
British and American English diverged on this one—Americans say 'calipers' while Brits say 'callipers,' but they're measuring the same thing the same way with the same tool.
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