单词 | serum |
释义 | serum/ˈsɪərəm /noun (plural sera /ˈsɪərə/ or serums) [mass noun] 1An amber-coloured, protein-rich liquid which separates out when blood coagulates: the researchers examined blood serum obtained from 471 heterosexual men and women [count noun]: sera were stored at −20°C until tested...
2The blood serum of an animal used to provide immunity to a pathogen or toxin by inoculation or as a diagnostic agent: doctors treated the bites of carpet vipers with serum produced from local snakes...
OriginLate 17th century: from Latin, literally 'whey'. Rhymes |
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