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
ˌsir-ō-ˌne-gə-ˈti-və-tē How to pronounce seronegative (audio)
noun

Examples of seronegative in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Through blood test results, joint imaging analysis, and my history of symptoms, I was finally diagnosed with seronegative rheumatoid arthritis. — Suzy Katz, Health, 16 May 2025 Some people with this disease have what is known as seronegative RA, where blood tests don't reveal antibodies or RF. — Lana Barhum, Verywell Health, 5 June 2024 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 See All Example Sentences for seronegative

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

Rhymes for seronegative

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Browse Nearby Words

seron
seronegative
seroon
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Cite this Entry

“Seronegative.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/seronegative. Accessed 7 Jul. 2026.

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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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