seronegative

adjective

se·​ro·​neg·​a·​tive ˌsir-ō-ˈne-gə-tiv How to pronounce seronegative (audio)
: having or being a negative serum reaction especially in a test for the presence of an antibody
seronegativity noun

Examples of seronegative in a Sentence

Recent Examples on the Web In those comparisons, the bivalent booster increases neutralizing antibody levels compared to the current booster by about 22 percent in all participants and by about 24 percent in the seronegative participants. Beth Mole, Ars Technica, 8 June 2022 For seronegative patients, median time to symptom alleviation was 13 days for the placebo group, 8 days for the high-dose group, and 6 days for the low-dose group. NBC News, 29 Sep. 2020 Some of these medical conditions include issues like seronegative spondyloarthropathy or ankylosing spondylitis. Zee Krstic, Good Housekeeping, 4 May 2023 Before the fourth booster, all the seronegative participants had geometric mean titers (GMT) of omicron neutralizing antibodies at around 300. Beth Mole, Ars Technica, 8 June 2022 For example, as described by a publication in EClinical Medicine 5% of 698 people in Israel remained seronegative despite having tested positive for the Covid-19 coronavirus. Bruce Y. Lee, Forbes, 5 Sep. 2021 There was other evidence the antibody cocktail helped these seronegative patients. Matthew Herper, STAT, 17 June 2021 The second dose brought a boost in antibodies for the seronegative group compared to the seropositive group. Chris Smith, BGR, 11 Mar. 2021 In the Regeneron data, the most dramatic drops in SARS-CoV-2 were seen in seronegative patients who had the highest levels of virus at the trial’s start. Jon Cohen, Science | AAAS, 30 Sep. 2020

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'seronegative.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

sero- + negative entry 1

First Known Use

1927, in the meaning defined above

Time Traveler
The first known use of seronegative was in 1927

Dictionary Entries Near seronegative

Cite this Entry

“Seronegative.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/seronegative. Accessed 20 Apr. 2024.

Medical Definition

seronegative

adjective
se·​ro·​neg·​a·​tive -ˈneg-ə-tiv How to pronounce seronegative (audio)
: having or being a negative serum reaction especially in a test for the presence of an antibody
early seronegative syphilis
a seronegative patient
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