1670s, "watery animal fluid," from Latin serum "watery fluid, whey," from PIE root *ser- (2) "to run, flow" (cognates: Greek oros "whey;" Sanskrit sarah "flowing," sarit "brook, river"). First applied 1893 to blood serum used in medical treatments.
权威例句
1. They are determining the serum - protein and cholesterol levels.
他们正在测定血清蛋白和胆固醇的浓度.
2. The serum is available to the general public.
一般公众均可获得血清.
3. The only available hyperimmune serum was of equine origin.
唯一可得到的超免疫血清来源于马.
4. Untreated serum contains a set of 11 proteins called complement.
未经处理的血清含有一组蛋白质,共11种,称为补体.
5. Antibodies were part of the r - globulin fraction of serum.