Noun | 1. | operation - the state of being in effect or being operative; "that rule is no longer in operation" activeness, activity, action - the state of being active; "his sphere of activity"; "he is out of action" commission - the state of being in good working order and ready for operation; "put the ships into commission"; "the motor was out of commission" running - the state of being in operation; "the engine is running smoothly" idle - the state of an engine or other mechanism that is idling; "the car engine was running at idle" |
2. | 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" business activity, commercial activity - activity undertaken as part of a commercial enterprise | |
3. | 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" activity - any specific behavior; "they avoided all recreational activity" rescue operation - an operation organized to free from danger or confinement undercover operation - an operation involving secret work within a community or institution | |
4. | 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" memory access, access - (computer science) the operation of reading or writing stored information computer science, computing - the branch of engineering science that studies (with the aid of computers) computable processes and structures asynchronous operation - operations that occur without a regular or predictable time relation to other events auxiliary operation, off-line operation - a operation performed by off-line equipment not under the control of the central processing unit binary arithmetic operation, binary operation, boolean operation - an operation that follows the rules of Boolean algebra; each operand and the result take one of two values computer operation, machine operation - an elementary operation that a computer is designed and built to perform concurrent operation - two or more operations performed at the same time (or within a give interval) control function, control operation - an operation that controls the recording or processing or transmission of interpretation of data; "a control operation started the data processing" data processing - (computer science) a series of operations on data by a computer in order to retrieve or transform or classify information dyadic operation - an operation on exactly two operands fixed-cycle operation - an operation that is completed in a specified number of regularly timed execution cycles logic operation, logical operation - an operation that follows the rules of symbolic logic monadic operation, unary operation - an operation with exactly one operand multiplex operation - an operation in which two or more activities are interleaved parallel operation, simultaneous operation - the simultaneous execution of two or more operations printing operation - an operation that controls the printing or display of information lookup, search - an operation that determines whether one or more of a set of items has a specified property; "they wrote a program to do a table lookup" consecutive operation, sequential operation, serial operation - the sequential execution of operations one after another sorting, sort - an operation that segregates items into groups according to a specified criterion; "the bottleneck in mail delivery is the process of sorting" synchronous operation - operations that are initiated predictably by a clock threshold operation - an operation performed on operands in order to obtain the value of a threshold function | |
5. | ![]() activity - any specific behavior; "they avoided all recreational activity" combined operation - a military operation carried out cooperatively by two or more allied nations or a military operation carried out by coordination of sea, land, and air forces military campaign, campaign - several related operations aimed at achieving a particular goal (usually within geographical and temporal constraints) naval campaign - an operation conducted primarily by naval forces in order to gain or extend or maintain control of the sea military mission, mission - an operation that is assigned by a higher headquarters; "the planes were on a bombing mission" reinforcement, reenforcement, support - a military operation (often involving new supplies of men and materiel) to strengthen a military force or aid in the performance of its mission; "they called for artillery support" attack, onrush, onset, onslaught - (military) an offensive against an enemy (using weapons); "the attack began at dawn" peacekeeping, peacekeeping mission, peacekeeping operation - the activity of keeping the peace by military forces (especially when international military forces enforce a truce between hostile groups or nations) amphibious operation - a military operation by both land and sea forces information gathering - the act of collecting information psychological operation, psyop - military actions designed to influence the perceptions and attitudes of individuals, groups, and foreign governments covert operation - an intelligence operation so planned as to permit plausible denial by the sponsor armed forces, armed services, military, military machine, war machine - the military forces of a nation; "their military is the largest in the region"; "the military machine is the same one we faced in 1991 but now it is weaker" | |
6. | ![]() catheterisation, catheterization - the operation of introducing a catheter into the body amputation - a surgical removal of all or part of a limb angioplasty - an operation to repair a damaged blood vessel or unblock a coronary artery arthroplasty - surgical reconstruction or replacement of a malformed or degenerated joint arthroscopy - a minimally invasive operation to repair a damaged joint; the surgeon examines the joint with an arthroscope while making repairs through a small incision brain surgery - any surgical procedure involving the brain castration - surgical removal of the testes or ovaries (usually to inhibit hormone secretion in cases of breast cancer in women or prostate cancer in men); "bilateral castration results in sterilization" cauterisation, cauterization, cautery - the act of coagulating blood and destroying tissue with a hot iron or caustic agent or by freezing chemosurgery - use of chemical to destroy diseased or malignant tissue; used in treatment of skin cancer craniotomy - a surgical opening through the skull cryosurgery - the use of extreme cold (usually liquid nitrogen) to destroy unwanted tissue (warts or cataracts or skin cancers) curettement - surgery to remove tissue or growths from a bodily cavity (as the uterus) by scraping with a curette debridement - surgical removal of foreign material and dead tissue from a wound in order to prevent infection and promote healing decortication - removal of the outer covering of an organ or part D and C, dilatation and curettage, dilation and curettage - a surgical procedure usually performed under local anesthesia in which the cervix is dilated and the endometrial lining of the uterus is scraped with a curet; performed to obtain tissue samples or to stop prolonged bleeding or to remove small tumors or to remove fragments of placenta after childbirth or as a method of abortion electrosurgery - surgery performed with electrical devices (as in electrocautery) enterostomy, enterotomy - surgical operation that creates a permanent opening through the abdominal wall into the intestine enucleation - surgical removal of something without cutting into it; "the enucleation of the tumor" wrong-site surgery - a surgical operation performed on the wrong part of the body evisceration - surgical removal of an organ (or the contents of an organ) from a patient exenteration - surgical removal of the organs within a body cavity (as those of the pelvis) eye operation, eye surgery - any surgical procedure involving the eyes fenestration - surgical procedure that creates a new fenestra to the cochlea in order to restore hearing lost because of osteosclerosis gastrectomy - surgical removal of all or part of the stomach gastroenterostomy - surgical creation of an opening between the stomach wall and the small intestines; performed when the normal opening has been eliminated gastrostomy - surgical creation of an opening through the abdominal wall into the stomach (as for gastrogavage) heart surgery - any surgical procedure involving the heart haemorrhoidectomy, hemorrhoidectomy - surgical procedure for tying hemorrhoids and excising them haemostasia, haemostasis, hemostasia, hemostasis - surgical procedure of stopping the flow of blood (as with a hemostat) hysterotomy - surgical incision into the uterus (as in cesarean section) implantation - a surgical procedure that places something in the human body; "the implantation of radioactive pellets in the prostate gland" surgical incision, incision, section - the cutting of or into body tissues or organs (especially by a surgeon as part of an operation) intestinal bypass - surgical operation that shortens the small intestine; used in treating obesity jejunostomy - surgical creation of an opening between the jejunum and the anterior abdominal wall; will allow artificial feeding major surgery - any surgical procedure that involves anesthesia or respiratory assistance microsurgery - surgery using operating microscopes and miniaturized precision instruments to perform intricate procedures on very small structures minor surgery - any surgical procedure that does not involve anesthesia or respiratory assistance myotomy - surgical incision or division of a muscle myringectomy - surgical removal of the eardrum myringoplasty - surgical repair of a perforated eardrum with a tissue graft myringotomy - surgical incision into the eardrum (to relieve pressure or release pus from the middle ear) neurosurgery - any surgery that involves the nervous system (brain or spinal cord or peripheral nerves) | |
7. | operation - 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" work - activity directed toward making or doing something; "she checked several points needing further work" | |
8. | operation - process or manner of functioning or operating; "the power of its engine determines 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" physical process, process - a sustained phenomenon or one marked by gradual changes through a series of states; "events now in process"; "the process of calcification begins later for boys than for girls" | |
9. | ![]() basic cognitive process - cognitive processes involved in obtaining and storing knowledge higher cognitive process - cognitive processes that presuppose the availability of knowledge and put it to use psychological science, psychology - the science of mental life | |
10. | ![]() calculation, computation, computing - the procedure of calculating; determining something by mathematical or logical methods permutation - the act of changing the arrangement of a given number of elements combination - the act of arranging elements into specified groups without regard to order differentiation - the mathematical process of obtaining the derivative of a function maximization - the mathematical process of finding the maximum value of a function integration - an operation used in the calculus whereby the integral of a function is determined exponentiation, involution - the process of raising a quantity to some assigned power arithmetic operation - a mathematical operation involving numbers matrix operation - a mathematical operation involving matrices construction - drawing a figure satisfying certain conditions as part of solving a problem or proving a theorem; "the assignment was to make a construction that could be used in proving the Pythagorean theorem" relaxation method, relaxation - a method of solving simultaneous equations by guessing a solution and then reducing the errors that result by successive approximations until all the errors are less than some specified amount math, mathematics, maths - a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement | |
11. | operation - the activity of operating something (a machine or business etc.); "her smooth operation of the vehicle gave us a surprisingly comfortable ride" activity - any specific behavior; "they avoided all recreational activity" business enterprise, commercial enterprise, business - the activity of providing goods and services involving financial and commercial and industrial aspects; "computers are now widely used in business" |