booster

noun
boost·​er | \ ˈbü-stər How to pronounce booster (audio) \

Definition of booster

: one that boosts: such as
a : an enthusiastic supporter
b : an auxiliary device for increasing force, power, pressure, or effectiveness
c slang : shoplifter
d : a radio-frequency amplifier for a radio or television receiving set
e : the first stage of a multistage rocket providing thrust for the launching and the initial part of the flight
f : a substance or dose used to renew or increase the effect of a drug or immunizing agent especially : booster shot

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Examples of booster in a Sentence

These exercises are real metabolism boosters. Music is my favorite mood booster. A sincere compliment can be a true confidence booster. The university has a number of wealthy boosters who contribute generously each year. a new design for rocket boosters
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Recent Examples on the Web

The company has already mastered its technique for landing first-stage rocket boosters, which provide the initial boost at liftoff before detaching from the second stage. Jackie Wattles, CNN, "SpaceX shares vibrant footage from its first-ever nose cone recovery," 5 July 2019 About eight minutes after liftoff, the Falcon Heavy’s side boosters — which were used during an April mission — are set to land at Cape Canaveral Air Force Station. Samantha Masunaga, latimes.com, "SpaceX hopes to impress the Air Force with its ‘most difficult launch ever’," 24 June 2019 Janssen is charging the public from $4,720 to $6,785 for a course of treatment, and clinic costs will add more to the bill, not to mention monthly boosters, if needed. New York Times, "Veterans Agency to Offer New Depression Drug, Despite Cost and Safety Concerns," 21 June 2019 Consumers are drawn to products promoted as energy boosters, from bars to balls, shots, and a whole lot of drinks. Cynthia Sass, Mph, Health.com, "Energy Drinks May Cause Heart Problems—Here’s How to Get a Natural Boost Instead," 4 June 2019 SpaceX plans to bring humans to Mars with a two-stage rocket: the Starship upper stage and a Super Heavy booster (the latter formerly known as the Big Falcon Rocket, or BFR). Ben Pearson, Ars Technica, "SpaceX beginning to tackle some of the big challenges for a Mars journey," 3 June 2019 For good measure, the current owner also recently replaced the water pump and front crank seal, rebuilt the master cylinder and brake booster, and fitted new KYB dampers in front and adjustable Koni units in the rear. Andrew Wendler, Car and Driver, "1988 Chevrolet Corvette C4 Callaway Twin-Turbo Four-Speed Is a High-Performance Love Letter from the '80s," 15 May 2019 The fungus-caterpillar husk combination is prized in traditional Tibetan and Chinese medicine as an immune booster, cancer treatment, and aphrodisiac. Jennifer Lu, National Geographic, "How a parasitic fungus turns ants into 'zombies'," 18 Apr. 2019 While the trend is an instant mood-booster, bright eyes can be daunting to incorporate into day-to-day wear. Christian Allaire, Vogue, "Scarlett Johansson Does a Wearable Take on One of Spring’s Biggest Beauty Trends," 11 Apr. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'booster.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of booster

1888, in the meaning defined above

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Statistics for booster

Last Updated

9 Jul 2019

Look-up Popularity

Time Traveler for booster

The first known use of booster was in 1888

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More Definitions for booster

booster

noun

English Language Learners Definition of booster

: an action or substance that makes something stronger or more effective
: something that helps or encourages someone or something
US : someone who supports an idea or organization

booster

noun
boost·​er | \ ˈbü-stər How to pronounce booster (audio) \

Medical Definition of booster

: a substance or dose used to renew or increase the effect of a drug or immunizing agent: such as
a(1) : booster shot
(2) : booster dose
b : synergist sense 1 a chemical acting as a booster to sulfa drugs

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More from Merriam-Webster on booster

Thesaurus: All synonyms and antonyms for booster

Spanish Central: Translation of booster

Nglish: Translation of booster for Spanish Speakers

Comments on booster

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