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PSA
noun
  1. From our crowdsourced Open Dictionary
    1
    a public service announcement

    a PSA campaign targeted to motivate Americans to recycle every day

    a PSA in English and Spanish

    Submitted from United Kingdom on 11/04/2018
  2. From our crowdsourced Open Dictionary
    2
    medical prostate specific antigen: a protein that liquefies semen so the sperm are able to swim

    Abnormally high levels of PSA can indicate problems with the functioning of the prostate gland.


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