booster

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n.

1. One that boosts, as:
   1. A device for increasing power or effectiveness.
   2. An enthusiastic promoter, as of a sports team or school.
   3. Electronics. A radio-frequency amplifier.
   4. The primary stage of a multistage rocket that provides the main thrust for launch, liftoff, and initial flight.
2. A booster shot.
3. Slang. One who steals goods on display in a store.

n

The portion of an immunizing agent given at a later time to stimulate the effects of a previous dose of the same agent.

n. 1. a high-explosive element sufficiently sensitive so as to be actuated by small explosive elements in a fuze or primer and powerful enough to cause detonation of the main explosive filling.

2. an auxiliary or initial propulsion system that travels with a missile or aircraft and that may or may not separate from the parent craft when its impulse has been delivered. A booster system may contain, or consist of, one or more units.

See the Introduction, Abbreviations and Pronunciation for further details.

(DOD, NATO) 1. A high-explosive element sufficiently sensitive so as to be actuated by small explosive elements in a fuze or primer and powerful enough to cause detonation of the main explosive filling. 2. An auxiliary or initial propulsion system which travels with a missile or aircraft and which may or may not separate from the parent craft when its impulse has been delivered. A booster system may contain, or consist of, one or more units.

IN BRIEF: An enthusiastic supporter. An extra dose of immunizing agent given to maintain immunity.

I was glad I had gotten my tetanus booster shot when I accidentally stepped on a rusty nail.

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Dansk (Danish)
n. - booster, højspændingsforhøjende dynamo

idioms:

• booster seat    støttesæde

Nederlands (Dutch)
inenting die vorige prik versterkt, hulpmotor/ -raket, iemand die helpt/ bijdraagt etc., winkeldief, versterker voor radio-/ tv-signaal

Français (French)
n. - amplificateur, appoint, (Élec) survolteur, charge d'appoint, (Radio) amplificateur, (Rail) booster, fusée de lancement, (Méd) piqûre de rappel, (US) supporter actif ou enthousiaste

idioms:

• booster seat    siège réhausseur

Deutsch (German)
n. - Verstärker, Hilfsantrieb, Auffrischimpfung

idioms:

• booster seat    Kindersitz

Ελληνική (Greek)
n. - (ηλεκτρ.) ενισχυτής, (ιατρ.) ενισχυτική δόση εμβολίου

Italiano (Italian)
preamplificatore, pubblicitario

idioms:

• booster seat    seggiolone

Português (Portuguese)
n. - que dá impulso, dose (f) de reforço (Med.), amplificador (m) (Eletr.)

Русский (Russian)
усилитель, ускоритель, ежегодный или повторный укол

Español (Spanish)
n. - elevador de voltaje, motor auxiliar de propulsión, aumentador de presión

idioms:

• booster seat    silla propulsadora, silla alta para niños

Svenska (Swedish)
n. - reklamman, servoanordning, booster, förstärkare

中文（简体）(Chinese (Simplified))
热心的拥护者, 支持者, 后推的人

中文（繁體）(Chinese (Traditional))
n. - 熱心的擁護者, 支持者, 後推的人

한국어 (Korean)
n. - 후원자, 부스터(로켓트 추진 장치), 인상

日本語 (Japanese)
n. - 後援者, 熱狂的支持者, 昇圧機, 増幅器, ブースター

idioms:

• booster seat    後援者用座席

العربيه (Arabic)
‏(الاسم) مشجع, محرك أضافي, صاروخ الأطلاق, جرعه دواء اضافيه‏

עברית (Hebrew)
n. - ‮מגביר (עוצמה), מגבר זרם חשמלי, זריקה, תזריק נוסף, חסיד, תומך, מנוע או רקטה היוצרים את התאוצה הראשונית‬

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booster	Testosterone Booster
Antenna Booster	Everest Booster