antibody
noun/ˈæntiˌbɑdi/
Frequency rank: #7,978 of 20,003 in the WORDED list (wordfreq data)
Meaning
A protein produced by the immune system to identify and neutralize foreign substances such as bacteria or viruses.

Example sentence
Doctors found that her blood contained a rare antibody that could fight the virus effectively.
Synonyms & related words
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