Definition of prostate-specific antigen in English:

prostate-specific antigen

Syllabification: pros·tate-spe·cif·ic an·ti·gen
(abbreviation: PSA)


  • An antigenic enzyme released by the prostate and found in abnormally high concentrations in the blood of men with prostate cancer.
    More example sentences
    • Men middle-aged and older routinely get blood tests for prostate-specific antigen, or PSA, to screen for prostate cancer.
    • The treatment also increases blood concentrations of prostate-specific antigen, or PSA, a marker associated with prostate cancer and prostate enlargement.
    • In light of the urinary symptoms, he then had his blood tested for prostate-specific antigen, a protein elevated in prostate cancer.

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