business activity, commercial activity - activity undertaken as part of a commercial enterprise

activity - any specific activity; "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

work - activity directed toward making or doing something; "she checked several points needing further work"

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"

ablation, cutting out, extirpation, excision - surgical removal of a body part or tissue

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)

curettage, 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)

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)

iridectomy - surgical removal of part of the iris of the eye

iridotomy - a surgical procedure that makes an incision in the iris of the eye in order to enlarge the pupil or to treat glaucoma

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

activity - any specific activity; "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

maneuver, simulated military operation, manoeuvre - a military training exercise

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"

offence, offensive, offense - the action of attacking an enemy

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

Argonne, Argonne Forest, Meuse-Argonne, Meuse-Argonne operation, Meuse, Meuse River - an American operation in World War I (1918); American troops under Pershing drove back the German armies which were saved only by the Armistice on November 11

Operation Desert Storm - the United States and its allies defeated Iraq in a ground war that lasted 100 hours (1991)

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"

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 it 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

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"

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

cognition, knowledge, noesis - the psychological result of perception and learning and reasoning

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

activity - any specific activity; "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"