1.  booster(n = noun.person) admirer, champion, friend, protagonist, supporter - a person who backs a politician or a team etc.; "all their supporters came out for the game"; "they are friends of the library"
is a kind of advocate, advocator, exponent, proponent
has particulars: anglophil, anglophile, believer, truster, boswell, cheerleader, confederate, corporatist, enthusiast, partisan, partizan, francophil, francophile, free trader, functionalist, jacobite, loyalist, stalwart, new dealer, graecophile, philhellene, philhellenist, mainstay, pillar, roundhead, seconder, shavian, endorser, indorser, ratifier, subscriber, sympathiser, sympathizer, well-wisher, toaster, wassailer, maintainer, sustainer, upholder, verifier, voucher, whig
Derived form verb boost₃

2.  booster(n = noun.person) plugger, promoter - someone who is an active supporter and advocate;
is a kind of adman, advertiser, advertizer
has particulars: barker
Derived form verb boost₃

3.  booster(n = noun.person) lifter, shoplifter - a thief who steals goods that are in a store;
is a kind of stealer, thief

4.  booster(n = noun.artifact) booster amplifier, booster station, relay link, relay station, relay transmitter - an amplifier for restoring the strength of a transmitted signal;
is a kind of amplifier
is a part of communication equipment, communication system

5.  booster(n = noun.artifact) booster rocket, booster unit, takeoff booster, takeoff rocket - the first stage of a multistage rocket;
is a kind of rocket, rocket engine
is a part of multistage rocket, step rocket
Derived form verb boost₅

6.  booster(n = noun.artifact) booster dose, booster shot, recall dose - an additional dose that makes sure the first dose was effective;
is a kind of dosage, dose

1.  An instrument for regulating the electro-motive force in an alternating-current circuit; -- so called because used to “boost”, or raise, the pressure in the circuit. [Webster 1913 Suppl.]

2.  an enthusiastic supporter. [PJC]

3.  the first stage of a multistage rocket, providing all or part of the driving force at lift-off and until the second stage ignites, whether or not the booster stage is detached after the fuel is spent. Also called booster rocket. In some cases, a booster has been used to assist the takeoff of airplanes. [PJC]

4.  an immunizing medication given after an initial immunizing treatment, to provide increased or extended immunity. Also called booster dose. When in the form of an injection, it may be called a booster shot. [PJC]

5.  any auxiliary device or part of a device to provide increased power, force, or effectiveness, as with a pumping device. [PJC]

6.  an explosive charge which is more powerful than a primer, used in conjunction with a primer to assure detonation of the main charge. Integrated blasting caps containing separate compartments for primer and booster are used as detonators for certain explosives. [PJC]

booster, n.
1 a device for increasing electrical power or voltage.
2 an auxiliary engine or rocket used to give initial acceleration.
3 Med. a dose of an immunizing agent increasing or renewing the effect of an earlier one.
4 a person who boosts by helping or encouraging.

N  remedy, help, cure, redress, medicine, medicament, diagnosis, medical examination, medical treatment, surgery, preventive medicine, clinical thermometer, stethoscope, X-ray machine, anthelmintic, antidote, antifebrile, antipoison, counterpoison, antitoxin, antispasmodic, bracer, faith cure, placebo, helminthagogue, lithagogue, pick-meup, stimulant, tonic, vermifuge, prophylactic, corrective, restorative, sedative, palliative, febrifuge, alterant, alterative, specific, antiseptic, emetic, analgesic, pain-killer, antitussive, antiinflammatory, antibiotic, antiviral, antifungal, 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, 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, compress, pledget, bandage, treatment, medical treatment, regimen, dietary, dietetics, vis medicatrix, vis medicatrix naturae, medecine expectante, bloodletting, bleeding, venesection, 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, therapeutics, posology, homeopathy, allopathy, heteropathy, osteopathy, hydropathy, cold water cure, dietetics, surgery, chirurgery, chirurgy, healing art, leechcraft, orthopedics, orthopedy, orthopraxy, pediatrics, dentistry, midwifery, obstetrics, gynecology, tocology, sarcology, hospital, infirmary, pesthouse, lazarhouse, lazaretto, lock hospital, maison de sante, 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, public health specialist, dermatologist, podiatrist, witch doctor, shaman, faith healer, quack, exorcist, Aesculapius, Hippocrates, Galen, accoucheur, accoucheuse, midwife, oculist, aurist, operator, nurse, registered nurse, practical nurse, monthly nurse, sister, nurse's aide, candystriper, dresser, bonesetter, pharmaceutist, pharmacist, druggist, chemist, pharmacopolist, remedial, restorative, corrective, palliative, healing, sanatory, sanative, prophylactic, preventative, immunizing, salutiferous, medical, medicinal, therapeutic, chirurgical, epulotic, paregoric, tonic, corroborant, analeptic, balsamic, anodyne, hypnotic, neurotic, narcotic, sedative, lenitive, demulcent, emollient, depuratory, detersive, detergent, abstersive, disinfectant, febrifugal, alterative, traumatic, vulnerary, allopathic, heteropathic, homeopathic, hydropathic, anthelmintic, antifebrile, antiluetic, aperient, chalybeate, deobstruent, depurative, laxative, roborant, dietetic, alimentary, nutritious, nutritive, peptic, alexipharmic, alexiteric, remediable, curable, aux grands maux les grands remedes, Dios que da la llaga da la medicina, para todo hay remedio sino para la muerte, temporis ars medicina fere est, the remedy is worse than the disease, throw physic to the dogs, I'll none of it.

booster amplifier, booster cable, booster dose, booster rocket, booster shot, booster station, booster unit, morale booster, takeoff booster