Definition, Meaning & Synonyms

psa

noun
/ˌpiː ɛs ˈeɪ/
Definition
PSA stands for Prostate-Specific Antigen, a protein produced by cells of the prostate gland.
Examples
  • Doctors often measure PSA levels to check for prostate problems.
  • A high PSA level may indicate the need for further investigation.
  • Routine PSA testing is common for men over the age of 50.
Meaning
It is mainly found in the blood of men and is used as a marker to screen for prostate health issues, including prostate cancer.
Synonyms
  • None directly, but related terms include prostate antigen and cancer marker.