1. prostate specific antigen: a protein, produced by the prostate, elevated levels of which may indicate the presence of cancer.

  2. public service announcement: an audio or video spot or advertisement to educate or promote awareness about health, safety, civics, etc.

Words Nearby PSA Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use PSA in a sentence

  • As soon as it was finished, this precious scripture came sweet to my soul, He will fulfil the desire of them that fear him: PSA.

  • I've heard of folks lyin' in bed and doin' nothin' but singin' PSA'ms continuous, and yet comin' to the same end.

    The Loves of Ambrose | Margaret Vandercook
  • But “Increase” or “Increased” was the representative of this class of thanksgiving names, in palpable allusion to PSA.

  • Louis PSA (b. 1850) has made a sphere of his own in his charming poems for and about children, des anym (“My dear Mother”).

  • "All kings shall fall down before him: all nations shall serve him," PSA.

    Companion to the Bible | E. P. Barrows

British Dictionary definitions for PSA


abbreviation for
  1. prostatic specific antigen: an enzyme secreted by the prostate gland, increased levels of which are found in the blood of patients with cancer of the prostate

  2. (in New Zealand) Public Service Association

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for PSA


  1. Abbreviation of prostatic-specific antigen

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.