Simple Definition of preoperative
medical : happening before an operation
Full Definition of preoperative
1 : occurring before a surgical operation <preoperative care>
2 : having not yet undergone a surgical operation
First Known Use of preoperative
Medical Definition of preoperative
1: occurring, performed, or administered before and usually close to a surgical operation <preoperative care> <preoperative medication>
2: having not yet undergone a surgical operation <preoperative patients>
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Medical Dictionary: Definition of "preoperative"
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