from The American Heritage® Dictionary of the English Language, 5th Edition.

  • transitive verb To check, adjust, or determine by comparison with a standard (the graduations of a quantitative measuring instrument).
  • transitive verb To make corrections in; adjust.
  • transitive verb To adjust (a display setting) so that recorded images are accurately reproduced.
  • transitive verb To determine the caliber of (a tube).

from The Century Dictionary.

  • To determine the caliber of, as the interior of a thermometer-tube. See calibration.
  • Hence To determine the relative value of, as different parts of an arbitrary scale.

from the GNU version of the Collaborative International Dictionary of English.

  • intransitive verb To ascertain the caliber of, as of a thermometer tube; also, more generally, to determine or rectify the graduation of, as of the various standards or graduated instruments.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • verb To check or adjust by comparison with a standard.
  • verb To mark the scale of a measuring instrument.
  • verb To measure the caliber of a tube or gun.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • verb make fine adjustments or divide into marked intervals for optimal measuring
  • verb measure the caliber of
  • verb mark (the scale of a measuring instrument) so that it can be read in the desired units


from Wiktionary, Creative Commons Attribution/Share-Alike License

From caliber +‎ -ate.


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  • After Iraq indisputably began deploying chemical weapons against Iranian forces in 1983, the U.S. secretly provided Iraq with intelligence, including satellite images, to "calibrate" its chemical weapons attacks against Iranian forces.

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  • After Iraq indisputably began deploying chemical weapons against Iranian forces in 1983, the U.S. secretly provided Iraq with intelligence to "calibrate" its mustard gas attacks on Iranian troops, including satellite photos of Iranian targets.

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  • Examine and "calibrate" each pole and then use them to measure wind speeds.

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