Meaning & use
antibody
A protein produced by the immune system to identify and neutralize harmful invaders such as bacteria or viruses.
See it in a sentence
After the infection cleared, her blood still contained antibodies that could fight the virus.
The vaccine trains the immune system to produce antibodies before a real infection occurs.
A note on using this word
Antibody is often confused with antigen; an antigen triggers the response, while an antibody is the defense produced.
Words with a similar meaning
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