Definition of booster
: one that boosts: such asa : an enthusiastic supporterb : an auxiliary device for increasing force, power, pressure, or effectivenessc slang : shoplifterd : a radio-frequency amplifier for a radio or television receiving sete : the first stage of a multistage rocket providing thrust for the launching and the initial part of the flightf : a substance or dose used to renew or increase the effect of a drug or immunizing agent; especially : booster shot
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
Recent Examples of booster from the Web
This could help hundreds of millions of children stuck in dismal classes—but only if edtech boosters can resist the temptation to revive harmful ideas about how children learn.
A health fair from 10 a.m. to 2 p.m. Saturday at Arrowhead Stadium will offer free screenings, body mass index readings and dental checks, as well as tips on car booster seat installation and bicycle safety.
Lawrence Tribe, the renowned Harvard scholar of constitutional law, has been an especially active booster for the site, routinely tweeting links to highly questionable, unverified news stories about Trump.
To be eligible, a booster must be at the All-American level, which requires a minimum $10,000 donation each year.
Lindsey's easygoing approach resonated with his players, but none more than Lutzenkirchen, whose father was the president of the Lassiter booster club and whose sister, Ann, babysat Lindsey's four children.
In a study conducted in Sudan in 2015, a single dose offered 80% protection during the first 2 months—although some participants may have been exposed to cholera the year before, essentially making the vaccine a booster and increasing its efficacy.
Businesses and individuals invested in the facilities remain unalloyed boosters.
Coconut turned out to be the booster that lifts these lemon bars above the pack.
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.
First Known Use of booster
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