1. To graduate or standardize any measuring instrument. 2. To measure the diameter of a tubular structure.
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cal·i·brate 'kal-ə-.brāt vt, -brat·ed; -brat·ing
1) to ascertain the caliber of (as a thermometer tube)
2) to determine, rectify, or mark the graduations of (as a thermometer tube)
3) to standardize (as a measuring instrument) by determining the deviation from a standard so as to ascertain the proper correction factors
cal·i·bra·tion .kal-ə-'brā-shən n
cal·i·bra·tor 'kal-ə-.brāt-ər n
Medical dictionary. 2011.