Also found in: Thesaurus, Medical, Legal, Idioms, Encyclopedia.


 (ŏp′ər-ə-tĭv, -ə-rā′tĭv, ŏp′rə-)
1. Being in effect; having force; operating: "Two major tendencies are operative in the American political system" (Heinz Eulau).
2. Functioning effectively; efficient.
3. Engaged in or concerned with physical or mechanical activity.
4. Of, relating to, or resulting from a surgical operation.
5. Significant; most important; key: The operative word is "low-fat."
1. A skilled worker, especially in industry.
a. A secret agent; a spy.
b. A private investigator.
3. One who works for a political organization, often wielding influence out of public view.

op′er·a·tive·ly adv.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adv.1.operatively - in a manner to produce an effect
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Bilateral neck exploration and subtotal parathyroidectomy was carried out in all cases with successful decline in the PTH levels and improvement in symptoms post operatively. Damage to the recurrent laryngeal nerve was not seen in any of the cases.
The supplemental absorbent article includes a backsheet and a liquid-permeable topsheet that is operatively connected and facing the backsheet.
In our study, it was observed that 92% of patients who received Ondansetron alone did not have any nausea and vomiting in 0-2hours postoperative period, 80% did not have any episode of nausea and 88% did not have any episode of vomiting in 2-6hrs post operatively, and no one complained of nausea and vomiting during 6-12 hrs.
A spacer assembly is affixed to the article and operatively engages an inside surface on the flap.
Post-operative UCVA & BCVA are recorded at IPOD, at I week, 1month, and 6months post operatively. Amblyopic treatment was instituted for necessary cases.
The article also includes a barrier cuff, which is made from a barrier flap and a spacing elastic member that is operatively associated with the barrier flap.
In the territory operatively covered by the Bijeljina Police Department, 762 migrants were found illegally crossing the border of Bosnia and Herzegovina in the first half of 2019.
13 knees had A-P instability of 5-10 mm preoperatively, post operatively all the 47 knees showed no A-P instability.
Post operatively, KSS scores improved for all the patients undergoing TKA and the functional component of group B patients was significantly improved as compared to the pre-operative value and the post-op group A subjects (p <0.01).