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A dose of an antigen (usually a vaccine) designed to strengthen immunity after an earlier immunizing dose.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
an additional dose that makes sure the first dose was effective
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: booster, booster dose, recall dose
Antonyms: none provided
Broader terms: dose, dosage
No etymology was provided for this word.