blood serum
noun
: the clear yellowish fluid that remains from blood plasma after clotting factors (such as fibrinogen and prothrombin) have been removed by clot formation
Example Sentences
Recent Examples on the Web If the sum of PFAS found in blood serum or plasma is 20 nanograms per milliliter or higher, the patient is at the greatest risk of adverse health effects, the committee said. 
Sandee Lamotte, CNN, 28 July 2022 Just how do allowable levels in drinking water compare to recommended blood serum levels? Sandee Lamotte, CNN, 28 July 2022 Their blood serum samples are then archived in the Department of Defense Serum Repository and can be retested for other pathogens. New York Times, 23 Feb. 2022 For the study, researchers led by Harvard neuroepidemiologist Dr. Kjetil Bjornevik mined an exceptionally rich repository of blood serum samples taken from a cohort of more than 10 million active-duty military personnel between 1993 and 2013. Beth Mole, Ars Technica, 13 Jan. 2022 Lab tests on omicron have already indicated that the blood serum of vaccinated people is less able to stop the virus from invading cells. al, 24 Dec. 2021 Lab tests on Omicron have already indicated that the blood serum of vaccinated people is less able to stop the virus from invading cells. Melissa Healy, Los Angeles Times, 23 Dec. 2021 The companies conducted laboratory experiments that pitted antibodies from the blood serum of vaccinated people against a pseudovirus engineered to mimic the omicron variant. Beth Mole, Ars Technica, 8 Dec. 2021 About one-fifth of the weight of your blood serum is made up of this whitish gunk. Brendan Borrell, Rolling Stone, 8 Dec. 2021 See More
Sandee Lamotte, CNN, 28 July 2022 Just how do allowable levels in drinking water compare to recommended blood serum levels? Sandee Lamotte, CNN, 28 July 2022 Their blood serum samples are then archived in the Department of Defense Serum Repository and can be retested for other pathogens. New York Times, 23 Feb. 2022 For the study, researchers led by Harvard neuroepidemiologist Dr. Kjetil Bjornevik mined an exceptionally rich repository of blood serum samples taken from a cohort of more than 10 million active-duty military personnel between 1993 and 2013. Beth Mole, Ars Technica, 13 Jan. 2022 Lab tests on omicron have already indicated that the blood serum of vaccinated people is less able to stop the virus from invading cells. al, 24 Dec. 2021 Lab tests on Omicron have already indicated that the blood serum of vaccinated people is less able to stop the virus from invading cells. Melissa Healy, Los Angeles Times, 23 Dec. 2021 The companies conducted laboratory experiments that pitted antibodies from the blood serum of vaccinated people against a pseudovirus engineered to mimic the omicron variant. Beth Mole, Ars Technica, 8 Dec. 2021 About one-fifth of the weight of your blood serum is made up of this whitish gunk. Brendan Borrell, Rolling Stone, 8 Dec. 2021 See More Word History
First Known Use
1801, in the meaning defined above
Medical Definition
blood serum
noun
: serum sense a(1)