From Longman Dictionary of Contemporary Englishserumse‧rum /ˈsɪərəm $ ˈsɪr-/ noun (plural serums or sera /-rə/) [countable, uncountable] 1 MD medical a liquid containing substances that fight infection or poison, that is put into a sick person’s blood → vaccine2 technicalHB the thin part of blood or the liquid from a plant
Examples from the Corpus
serum• The lower limits of normal for serum uric acid are arbitrarily defined and may vary from one lab to another.• Most recently, a soluble form of the usually membrane bound ICAM-1 molecule was detected in human serum samples.• Therefore, this study investigated carnitine concentrations in serum of patients with coeliac disease.• The cellular source of the catalytically active PLA2 in serum of patients suffering from acute pancreatitis and other diseases is unknown.• In patients with an increased total body sodium content, administration of salt to increase serum sodium level is inappropriate.• In blood, the majority is found in erythrocytes with only minor quantities in plasma or serum.• It has been reported that serum cholesterol values are similar in samples from fasting and non-fasting subjects.• In these situations, acetazolamide may be needed to decrease proximal bicarbonate and sodium reabsorption, thereby reducing the serum bicarbonate level.Origin serum (1600-1700) Latin 