UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˌkælɪˈbreɪʃən/

WordReference Random House Learner's Dictionary of American English © 2020
cal•i•brate /ˈkæləˌbreɪt/USA pronunciation   v. [ + obj], -brat•ed, -brat•ing. 
  1. Weights and Measuresto mark (a measuring instrument) with dividing points of degree or quantity:This thermometer is calibrated with Celsius and Fahrenheit markings.
  2. to set, check, or correct the measuring points of (an instrument that measures things).
cal•i•brated, adj. 
cal•i•bra•tion /ˌkæləˈbreɪʃən/USA pronunciation  n. [countable]the calibrations on a thermometer.[uncountable]How exact is that calibration?
cal•i•bra•tor, cal•i•brat•er, n. [countable]

WordReference Random House Unabridged Dictionary of American English © 2020
cal•i•brate  (kalə brāt′),USA pronunciation v.t.,  -brat•ed, -brat•ing. 
  1. to determine, check, or rectify the graduation of (any instrument giving quantitative measurements).
  2. to divide or mark with gradations, graduations, or other indexes of degree, quantity, etc., as on a thermometer, measuring cup, or the like.
  3. Militaryto determine the correct range for (an artillery gun, mortar, etc.) by observing where the fired projectile hits.
  4. to plan or devise (something) carefully so as to have a precise use, application, appeal, etc.:a sales strategy calibrated to rich investors.
cal′i•bration, n. 
cali•bra′tor, cali•brat′er, n. 
  • caliber + -ate1 1860–65

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