单词 | serum |
释义 | serum1 of 2noun se·rum ˈsir-əm plural sera ˈsir-ə or serums 1 : the watery, clear portion of an animal fluid: a : the clear, yellowish fluid that remains from blood plasma after clotting factors (such as fibrinogen and prothrombin) have been removed by clot formation : blood serum compare antiserum, convalescent serum b : a normal or pathological serous fluid (as in a blister) c : whey 2 : a usually lightweight cosmetic preparation especially for use on the face specifically : a typically water-based, often concentrated preparation that lacks lubricating and thickening agents an antiaging facial serum 3 : the watery part of a plant fluid Latex. This, the natural product of the rubber tree, is a suspension of rubber droplets in a watery serum concentrated and stabilized in such a way that the dry rubber content is between 60 and 70 per cent. C. A. O'Flaherty see also truth serum serum 2 of 2adjective : occurring or found in the blood serum serum cholesterol serum antibodies serum nounas in antibiotic Synonyms & Similar Words Relevance
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