Definitions for PSA
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Random House Webster's College Dictionary
PSA
prostate specific antigen: a protein, produced by the prostate, elevated levels of which may indicate the presence of cancer.
Category: Medicine, Immunology
Princeton's WordNet
prostate specific antigen, PSA(noun)
a protein manufactured exclusively by the prostate gland; PSA is produced for the ejaculate where it liquifies the semen and allows sperm cells to swim freely; elevated levels of PSA in blood serum are associated with benign prostatic hyperplasia and prostate cancer
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