mathematics A symbol or function representing a mathematical operation.

Roget 662: remedy, help, cure, redress; medicine, medicament; diagnosis, medical examination; medical treatment; surgery; preventive medicine.    [medical devices] clinical thermometer, stethoscope, X-ray machine.    anthelmintic [Med.]; antidote, antifebrile [Med.], antipoison^†, counterpoison^†, antitoxin, antispasmodic; bracer, faith cure, placebo; helminthagogue^†, lithagogue^†, pick-meup, stimulant, tonic; vermifuge, prophylactic, corrective, restorative; sedative etc. 174; palliative; febrifuge; alterant^†, alterative; specific; antiseptic, emetic, analgesic, pain-killer, antitussive [Med.], antiinflammatory [Med.], antibiotic, antiviral [Med.], antifungal [Med.], carminative; Nepenthe, Mithridate.    cure, treatment, regimen; radical cure, perfect cure, certain cure; sovereign remedy.    examination, diagnosis, diagnostics; analysis, urinalysis, biopsy, radiology.    medicine, physic, Galenicals^†, simples, drug, pharmaceutical, prescription, potion, draught, dose, pill, bolus, injection, infusion, drip, suppository, electuary^†; linctus^†, lincture^†; medicament; pharmacon^†.    nostrum, receipt, recipe, prescription; catholicon^†, panacea, elixir, elixir vitae, philosopher's stone; balm, balsam, cordial, theriac^†, ptisan^†.    agueweed^†, arnica, benzoin, bitartrate of potash, boneset^†, calomel, catnip, cinchona, cream of tartar, Epsom salts [Chem]; feverroot^†, feverwort; friar's balsam, Indian sage; ipecac, ipecacuanha; jonquil, mercurous chloride, Peruvian bark; quinine, quinquina^†; sassafras, yarrow.    salve, ointment, cerate, oil, lenitive, lotion, cosmetic; plaster; epithem^†, embrocation^†, liniment, cataplasm^†, sinapism^†, arquebusade^†, traumatic, vulnerary, pepastic^†, poultice, collyrium^†, depilatory; emplastrum^†; eyewater^†, vesicant, vesicatory [Med.].    compress, pledget^†; bandage etc. (support) 215.    treatment, medical treatment, regimen; dietary, dietetics; vis medicatrix^†, vis medicatrix naturae [Lat.]; medecine expectante [Fr.]; bloodletting, bleeding, venesection [Med.], phlebotomy, cupping, sanguisae, leeches; operation, surgical operation; transfusion, infusion, intravenous infusion, catheter, feeding tube; prevention, preventative medicine, immunization, inoculation, vaccination, vaccine, shot, booster, gamma globulin.    pharmacy, pharmacology, pharmaceutics; pharmacopoeia, formulary; acology^†, Materia Medica [Lat.], therapeutics, posology^†; homeopathy, allopathy^†, heteropathy [Med.], osteopathy, hydropathy [Med.]; cold water cure; dietetics; surgery, chirurgery [Med.], chirurgy^†; healing art, leechcraft^†; orthopedics, orthopedy^†, orthopraxy^†; pediatrics; dentistry, midwifery, obstetrics, gynecology; tocology^†; sarcology^†.    hospital, infirmary; pesthouse^†, lazarhouse^†; lazaretto; lock hospital; maison de sante [Fr.]; ambulance.    dispensary; dispensatory^†, drug store, pharmacy, apothecary, druggist, chemist.    Hotel des Invalides; sanatorium, spa, pump room, well; hospice; Red Cross.    doctor, physician, surgeon; medical practitioner, general practitioner, specialist; medical attendant, apothecary, druggist; leech; osteopath, osteopathist^†; optometrist, ophthalmologist; internist, oncologist, gastroenterologist; epidemiologist [Med.], public health specialist; dermatologist; podiatrist; witch doctor, shaman, faith healer, quack, exorcist; Aesculapius^†, Hippocrates, Galen; accoucheur [Fr.], accoucheuse [Fr.], midwife, oculist, aurist^†; operator; nurse, registered nurse, practical nurse, monthly nurse, sister; nurse's aide, candystriper; dresser; bonesetter; pharmaceutist^†, pharmacist, druggist, chemist, pharmacopolist^†.    ... show more

Roget 690: doer, actor, agent, performer, perpetrator, operator; executor, executrix; practitioner, worker, stager.    bee, ant, working bee, termite, white ant; laboring oar, servant of all work, factotum.    workman, artisan; craftsman, handicraftsman; mechanic, operative; working man; laboring man; demiurgus, hewers of wood and drawers of water, laborer, navvy^†; hand, man, day laborer, journeyman, charwoman, hack; mere tool etc. 633; beast of burden, drudge, fag; lumper^†, roustabout.    maker, artificer, artist, wright, manufacturer, architect, builder, mason, bricklayer, smith, forger, Vulcan; carpenter; ganger, platelayer; blacksmith, locksmith, sailmaker, wheelwright.    machinist, mechanician, engineer.    sempstress^†, semstress^†, seamstress; needlewoman^†, workwoman; tailor, cordwainer^†.    minister etc. (instrument) 631; servant etc. 746; representative etc. (commissioner) 758, (deputy) 759.    coworker, party to, participator in, particeps criminis [Lat.], dramatis personae [Lat.]; personnel.    ... show more

Roget 799a: stock market, stock exchange, securities exchange; bourse, board; the big board, the New York Stock Exchange; the market, the open market; over-the-counter market; privately traded issues.    commodities exchange, futures exchange, futures market.    the pit, the floor.    ticker, stock ticker, quotation; stock index, market index, the Dow Jones Index, the Dow Industrials, the transportation index, utilities, the utilities index; the New York Stock Exchange index, the Nikkei index [Jap.Tr.]; the Financial Times index, the FTI [Brit.], the over-the-counter index, NASDAQ index.    [person or firm trading securities] broker, stockbroker, jobber, stock dealer, odd-lot dealer; specialist.    [person who buys or sells stocks] investor, speculator, operator; bull, buyer; bear, short seller; scalper, arbitrager^†, arbitrageur^†; stockholder, share-holder, stockholder of record; bond holder, coupon-clipper [Sarc.].    investment; speculation.    ... show more

Dutch: operator

An agent that operates some apparatus or machine:
— The operator of the switchboard.

synonym: manipulator.

Polish: operator

Someone who owns or operates a business.

A shrewd or unscrupulous person who knows how to circumvent difficulties.

synonyms: hustler, wheeler dealer.

Dutch: computeroperator, operator

A speculator who trades aggressively on stock or commodity markets.