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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
Examples of blood serum in a Sentence
Recent Examples on the Web
Our group is currently working on using blood serum to identify proteins that could be involved with breast cancer.
—Danielle Whitham, Discover Magazine, 22 Mar. 2024
Chang and his coauthors also analyzed samples of blood serum from humans with lupus, dermatomyositis and systemic sclerosis and compared them with samples from people without autoimmune disease.
—Katie Hunt, CNN, 9 Feb. 2024
For flu, monitoring antigenic drift involves conducting a slew of blood serum tests in the lab and looking for patterns in the data.
—IEEE Spectrum, 1 Feb. 2022
Mayo is collecting blood serum samples stored at blood banks from another 2,000 to 3,000 patients who received convalescent plasma to expand its recent findings that high-dose plasma infusions had a greater impact on COVID-19 mortality than low-dose infusions.
—Jeremy Olson, Star Tribune, 20 Aug. 2020
The results, described in a 2011 paper in Nature, showed that the young mice treated with blood serum from old mice performed worse on tests of learning and memory.
—Dan Hurley, Discover Magazine, 9 June 2023
Without sound evidence linking skin exposure from clothing to upticks in PFAS in blood serum levels, Calonge said, for now, decisions are largely left up to risk tolerance.
—Hannah Norman, CBS News, 30 Mar. 2023
When researchers at Stanford University grew human neurons in a dish and treated them with blood serum from young mice, the neurons formed more synapses, which transmit electrical and chemical signals between cells, as well as more dendritic branches, which pick up messages from other neurons.
—Elizabeth Svoboda, Discover Magazine, 27 May 2022
Compared to the original version of the coronavirus, lab tests that pitted omicron against the blood serum of people who’d had two doses of the vaccine detected a 25-fold reduction in neutralizing antibodies, the immune proteins that thwart the virus.
—oregonlive, 9 Dec. 2021
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'blood serum.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Word History
First Known Use
1801, in the meaning defined above
Dictionary Entries Near blood serum
Cite this Entry
“Blood serum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/blood%20serum. Accessed 4 Jul. 2024.
Kids Definition
blood serum
noun
: blood plasma from which certain substances (as fibrinogen) involved in the clotting of blood have been removed
Medical Definition
blood serum
nounMore from Merriam-Webster on blood serum
Britannica.com: Encyclopedia article about blood serum
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