4. (adj.)operative operating, or exerting force or influence.
5. operative being in effect or operation.
6. operative effective or efficacious.
7. operative significant; key.
8. operative concerned with, involving, or pertaining to surgical operations.
Etymology: (1590–1600; < MF operatif)
Definition of 'operative'
Princeton's WordNet
1. (noun)secret agent, intelligence officer, intelligence agent, operative a person secretly employed in espionage for a government
2. (adj)private detective, PI, private eye, private investigator, operative, shamus, sherlock someone who can be employed as a detective to collect information
3. (adj)operative being in force or having or exerting force "operative regulations"; "the major tendencies operative in the American political system"
4. (adj)surgical, operative relating to or requiring or amenable to treatment by surgery especially as opposed to medicine "a surgical appendix"; "a surgical procedure"; "operative dentistry"
5. (adj)operative effective; producing a desired effect "the operative word"
6. (adj)running(a), operative, functional, working(a) (of e.g. a machine) performing or capable of performing "in running (or working) order"; "a functional set of brakes"
Definitions of operative 
Afrikaans: in gebruik, in werking
Arabic: فَعّال، نافِذ المَفْعول
Bulgarian: оперативен
Brazilian: em vigor
Czech: platný, účinný
German: wirksam
Danish: virksom; gældende
Greek: που βρίσκεται σε ισχύ
Spanish: en vigor
Estonian: jõus, käibel
Farsi: موثر؛ کاربردی
Finnish: voimassa oleva
French: en vigueur
Hebrew: תָּקֵף
Hindi: क्रियात्मक
Croatian: učinkovit, na snazi
Hungarian: érvényes
Indonesian: berlaku
Icelandic: virkur,í gildi
Italian: in vigore
Japanese: 効力がある
Korean: 작용하는, 영향을 미치는
Lithuanian: galiojantis, veikiantis
Latvian: spēkā esošs
Malay: berkuat kuasa
Dutch: van kracht
Norwegian: virkningsfull, operativ
Polish: obowiązujący
Persian: موثر؛ کاربردی
Pashto: اغيزمنوموثر
Portuguese: em vigor
Romanian: în vigoare
Russian: действующий, действенный
Slovak: platný
Slovenian: veljaven
Serbian: na snazi
Swedish: i kraft, gällande
Thai: พร้อมใช้งาน
Turkish: yürürlükte
Taiwanese: 起作用的
Ukrainian: діючий; чинний
Urdu: رائج
Vietnamese: có hiệu lực
Chinese: 起作用的
