HyperDic: psa

English > 1 sense of the word PSA:
NOUNsubstancePSA, prostate specific antigena protein manufactured exclusively by the prostate gland
English > PSA: 1 sense > noun 1, substance
MeaningA 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.
Synonymprostate specific antigen
BroaderproteinAny of a large group of nitrogenous organic compounds that are essential constituents of living cells

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