definitions

booster

[ boo-ster ]
/ ˈbu stər /
SEE MORE SYNONYMS FOR booster ON THESAURUS.COM

noun

RELATED CONTENT

Words That Can Ruin Your SentenceActually . . . crutch words slip into sentences in order to give the speaker more time to think or to emphasize a statement. Over time, they become unconscious verbal tics. Here are some crutch words to avoid!
READ MORE
Who Coined The Term Fashionista?In light of a recent article about the birth of the word “fashionista” in which Stephen Fried apologized for coining the term, we’d like to delve into the -ista suffix in hopes of understanding why English speakers combine it with certain words. But first, let’s look at “fashionista.” This word originally appeared in Stephen Fried’s 1993 biography of supermodel Gia Carangi. He invented it as …
READ MORE

RELATED WORDS

booster, immunization, vaccine

Nearby words

boorishly, booshit, boost, boost phase, boost-start, booster, booster cable, booster dose, booster seat, boosterish, boosterism

Origin of booster

An Americanism dating back to 1885–90; boost + -er1
Related formsboost·er·ish, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for booster dose (1 of 2)

booster dose

noun

a supplementary injection of a vaccine given to maintain the immunization provided by an earlier dose

British Dictionary definitions for booster dose (2 of 2)

booster

/ (ˈbuːstə) /

noun

a person or thing that supports, assists, or increases power or effectiveness
Also called: launch vehicle the first stage of a multistage rocket
radio television
  1. a radio-frequency amplifier connected between an aerial and a receiver to amplify weak incoming signals
  2. a radio-frequency amplifier that amplifies incoming signals, retransmitting them at higher power
another name for supercharger
short for booster dose
slang, mainly US a shoplifter
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for booster dose

booster

n.

1890, "one who boosts" something, agent noun from boost (v.). Electrical sense is recorded from 1894. Young child's booster chair is attested under that name from 1960.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for booster dose

booster

[ bōō′stər ]

n.

An additional dose of an immunizing agent, such as a vaccine or toxoid, given at a time after the initial dose to sustain the immune response elicited by the previous dose of the same agent.booster dose booster shot
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for booster dose

booster

[ bōō′stər ]

An additional dose of an immunizing agent, such as a vaccine or toxoid, given at a time period of weeks to years after the initial dose to sustain the immune response elicited by the first dose. Tetanus, diphtheria, and measles vaccines are commonly given in booster doses.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.