prostate-specific antigen
noun
pros·tate-spe·cif·ic antigen
: a protease secreted by epithelial cells of the prostate gland that is used in the diagnosis of prostate cancer since its concentration in blood serum tends to be proportional to the clinical stage of the disease
—abbreviation PSA
Examples of prostate-specific antigen in a Sentence
Recent Examples on the Web
The introduction of the prostate-specific antigen (PSA) blood test as a prostate cancer screening test (early detection) in the early 1990s led to a dramatic 50% decline in prostate cancer deaths.
—
Franklin D Gaylis, San Diego Union-Tribune, 28 May 2025
Has Joe Biden ever had a prostate-specific antigen or PSA test?
—Reader Commentary, Baltimore Sun, 27 May 2025
Critics have also questioned O’Connor’s decision not to require Biden to receive a prostate-specific antigen blood test that is commonly used to help diagnose prostate cancer.
—Mabinty Quarshie, The Washington Examiner, 22 May 2025
But in accordance with medical guidelines for seniors, none of the check ups included a PSA test that measures the prostate-specific antigen to screen for prostate cancer.
—Joey Garrison, USA Today, 21 May 2025
See All Example Sentences for prostate-specific antigen
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.
Franklin D Gaylis, San Diego Union-Tribune, 28 May 2025
Has Joe Biden ever had a prostate-specific antigen or PSA test?
—Reader Commentary, Baltimore Sun, 27 May 2025
Critics have also questioned O’Connor’s decision not to require Biden to receive a prostate-specific antigen blood test that is commonly used to help diagnose prostate cancer.
—Mabinty Quarshie, The Washington Examiner, 22 May 2025
But in accordance with medical guidelines for seniors, none of the check ups included a PSA test that measures the prostate-specific antigen to screen for prostate cancer.
—Joey Garrison, USA Today, 21 May 2025
See All Example Sentences for prostate-specific antigen
Cite this Entry
“Prostate-specific antigen.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/prostate-specific%20antigen. Accessed 2 Jun. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share