C-reactive protein
noun
C-re·ac·tive protein
ˈsē-rē-ˈak-tiv- 
: a protein present in blood serum in various abnormal states (such as inflammation or neoplasia)
—abbreviation CRP
Examples of C-reactive protein in a Sentence
Recent Examples on the Web
Participants in the study who received the supplements had lower C-reactive protein (CRP) levels at the end of the nine weeks.
—
Amber J. Tresca, Verywell Health, 5 Jan. 2026
Decreases Inflammation in Your Body Anti-inflammatory foods and drinks may decrease inflammatory markers like C-reactive protein (CRP).
—Jillian Kubala, Health, 31 Dec. 2025
C-reactive protein can be easily measured with blood work at the doctor’s office.
—Mary J. Scourboutakos, The Conversation, 19 Dec. 2025
High-sensitivity C-reactive protein (hs-CRP) High-sensitivity C-reactive protein (hs-CRP) is a blood test that detects low levels of C-reactive protein, a marker of inflammation in the body.
—Melissa Rudy, FOXNews.com, 8 Dec. 2025
Huffington refers to key biomarkers, such as blood sugar levels, C-reactive protein, a blood test marker for inflammation, and cholesterol.
—Alexa Mikhail, Flow Space, 14 Nov. 2025
This is a meaningful result, because high-sensitivity C-reactive protein – hsCRP – is an inflammatory marker that can signal increased risk of cardiovascular disease.
—New Atlas, 17 Sep. 2025
The study found that the people who ate more red meat and did not follow the Mediterranean diet had higher levels of circulating inflammatory markers, such as interleukin-6 (IL-6) and C-reactive protein (CRP).
—Sandee Lamotte, CNN Money, 15 Sep. 2025
In fact, studies have shown that even a single night of poor sleep can increase inflammatory markers like C-reactive protein.
—Anita Bhagwandas, Condé Nast Traveler, 26 July 2025
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Amber J. Tresca, Verywell Health, 5 Jan. 2026
Decreases Inflammation in Your Body Anti-inflammatory foods and drinks may decrease inflammatory markers like C-reactive protein (CRP).
—Jillian Kubala, Health, 31 Dec. 2025
C-reactive protein can be easily measured with blood work at the doctor’s office.
—Mary J. Scourboutakos, The Conversation, 19 Dec. 2025
High-sensitivity C-reactive protein (hs-CRP) High-sensitivity C-reactive protein (hs-CRP) is a blood test that detects low levels of C-reactive protein, a marker of inflammation in the body.
—Melissa Rudy, FOXNews.com, 8 Dec. 2025
Huffington refers to key biomarkers, such as blood sugar levels, C-reactive protein, a blood test marker for inflammation, and cholesterol.
—Alexa Mikhail, Flow Space, 14 Nov. 2025
This is a meaningful result, because high-sensitivity C-reactive protein – hsCRP – is an inflammatory marker that can signal increased risk of cardiovascular disease.
—New Atlas, 17 Sep. 2025
The study found that the people who ate more red meat and did not follow the Mediterranean diet had higher levels of circulating inflammatory markers, such as interleukin-6 (IL-6) and C-reactive protein (CRP).
—Sandee Lamotte, CNN Money, 15 Sep. 2025
In fact, studies have shown that even a single night of poor sleep can increase inflammatory markers like C-reactive protein.
—Anita Bhagwandas, Condé Nast Traveler, 26 July 2025
Cite this Entry
“C-reactive protein.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/C-reactive%20protein. Accessed 13 Jan. 2026.
Copy CitationMedical Definition
C-reactive protein
noun
C-re·ac·tive protein
ˌsē-rē-ˌak-tiv-
: a protein produced by the liver that is normally present in trace amounts in the blood serum but is elevated during episodes of acute inflammation (as those associated with neoplastic disease, chronic infection, or coronary artery disease)
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