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Meaning of booster injection | Babel Free

Noun CEFR B2

Definitions

A dose of an antigen designed to strengthen immunity after an earlier immunizing dose.

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
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See also

booster pack booster pad booster seat booster shot Boosterism Boosting

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