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preoperative

[pree-op-er-uh-tiv, -uh-rey-tiv, -op-ruh-tiv]
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adjective
  1. occurring or related to the period or preparations before a surgical operation.
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Origin of preoperative

First recorded in 1900–05; pre- + operative
Related formspre·op·er·a·tive·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

preoperative in Medicine

preoperative

(prē-ŏpər-ə-tĭv, -ŏprə-, -ŏpə-rā′-)
adj.
  1. Preceding a surgical operation.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.