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peri·op·er·a·tive -'äp-(ə-)rət-iv, -'äp-ə-.rāt- adj relating to, occurring in, or being the period around the time of a surgical operation <\perioperative morbidity>
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peri·op·er·a·tive (per″e-opґər-ə-tiv) pertaining to the period extending from the time of hospitalization for surgery to the time of discharge.Medical dictionary. 2011.