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operation

 
Noun operation has 11 senses
  1. operation - a business especially one run on a large scale; "a large-scale farming operation"; "a multinational operation"; "they paid taxes on every stage of the operation"; "they had to consolidate their operations"
    --1 is a kind of
    business activity, commercial activity
    Derived form: verb operate1
  2. operation - a planned activity involving many people performing various actions; "they organized a rescue operation"; "the biggest police operation in French history"; "running a restaurant is quite an operation"; "consolidate the companies various operations"
    --2 is a kind of
    activity
    --2 has particulars: rescue operation; undercover operation
  3. operation, procedure - a process or series of acts especially of a practical or mechanical nature involved in a particular form of work; "the operations in building a house"; "certain machine tool operations"
    --3 is a kind of work
    Derived form: verb operate2
  4. operation - the state of being in effect or being operative; "that rule is no longer in operation"
    --4 is a kind of
    action, activity, activeness
    --4 has particulars: commission; running
    Derived form: verb operate6
  5. operation, surgery, surgical operation, surgical procedure, surgical process - a medical procedure involving an incision with instruments; performed to repair damage or arrest disease in a living body; "they will schedule the operation as soon as an operating room is available"; "he died while undergoing surgery"
    --5 is a kind of medical procedure
    --5 has parts:
     hemostasis, haemostasis, hemostasia, haemostasia; incision, section, surgical incision; suturing
    --5 has particulars:
     ablation, extirpation, cutting out, excision; amputation; angioplasty; arthroplasty; arthroscopy; brain surgery; castration; cautery, cauterization, cauterisation; chemosurgery; craniotomy; cryosurgery; curettage, curettement; debridement; decortication; dilation and curettage, dilatation and curettage, D and C; electrosurgery; enterostomy, enterotomy; enucleation; wrong-site surgery; evisceration; exenteration; fenestration; gastrectomy; gastroenterostomy; gastrostomy; heart surgery; hemorrhoidectomy, haemorrhoidectomy; hysterotomy; implantation; iridectomy; iridotomy; intestinal bypass; jejunostomy; major surgery; microsurgery; minor surgery; myotomy; myringectomy; myringoplasty; myringotomy; neurosurgery; orchiopexy; osteotomy; ostomy; palatopharyngoplasty, PPP, uvulopalatopharyngoplasty, UPPP; phlebectomy; photocoagulation; plastic surgery, reconstructive surgery, anaplasty; polypectomy; resection; rhinotomy; rhizotomy; sex-change operation, transsexual surgery; Shirodkar's operation, purse-string operation; sterilization, sterilisation; strabotomy; taxis; tracheostomy, tracheotomy; transplant, transplantation, organ transplant; trephination; tympanoplasty; uranoplasty; vasovasostomy; vivisection
    Derived form: verb operate7
  6. operation, military operation - activity by a military or naval force (as a maneuver or campaign); "it was a joint operation of the navy and air force"
    --6 is a kind of activity
    --6 has particulars:
     combined operation; maneuver, manoeuvre, simulated military operation; campaign, military campaign; naval campaign; mission, military mission; support, reinforcement, reenforcement; attack, onslaught, onset, onrush; offense, offence, offensive; peacekeeping, peacekeeping mission, peacekeeping operation; amphibious operation; information gathering; psychological operation, psyop; covert operation; Meuse, Meuse River, Argonne, Argonne Forest, Meuse-Argonne, Meuse-Argonne operation; Operation Desert Storm
    Derived form: verb operate4
  7. operation - (computer science) data processing in which the result is completely specified by a rule (especially the processing that results from a single instruction); "it can perform millions of operations per second"
    --7 is a kind of
    data processing
    --7 has particulars:
     access, memory access; asynchronous operation; auxiliary operation, off-line operation; boolean operation, binary operation, binary arithmetic operation; computer operation, machine operation; concurrent operation; control operation, control function; dyadic operation; fixed-cycle operation; logic operation, logical operation; monadic operation, unary operation; multiplex operation; parallel operation, simultaneous operation; printing operation; search, lookup; serial operation, sequential operation, consecutive operation; sort, sorting; synchronous operation; threshold operation
  8. operation, functioning, performance - process or manner of functioning or operating; "the power of its engine determine its operation"; "the plane's operation in high winds"; "they compared the cooking performance of each oven"; "the jet's performance conformed to high standards"
    --8 is a kind of process
    Derived form: verb operate2
  9. mathematical process, mathematical operation, operation - (mathematics) calculation by mathematical methods; "the problems at the end of the chapter demonstrated the mathematical processes involved in the derivation"; "they were learning the basic operations of arithmetic"
    --9 is a kind of calculation, computation, computing
    --9 has particulars:
     permutation; combination; differentiation; maximization; integration; exponentiation, involution; arithmetic operation; matrix operation; construction; relaxation, relaxation method
  10. process, cognitive process, mental process, operation, cognitive operation - (psychology) the performance of some composite cognitive activity; an operation that affects mental contents; "the process of thinking"; "the cognitive operation of remembering"
    --10 is a kind of cognition, knowledge, noesis
    --10 has particulars: basic cognitive process; higher cognitive process
    Derived form: verb operate5
  11. operation - the activity of operating something (a machine or business etc.); "her smooth operation of the vehicle gave us a surprisingly comfortable ride"
    --11 is a kind of
    activity
    Derived forms: verb operate1, verb operate6, verb operate3
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