PSA

American

abbreviation

prostate specific antigen: a protein, produced by the prostate, elevated levels of which may indicate the presence of cancer.
public service announcement: an audio or video spot or advertisement to educate or promote awareness about health, safety, civics, etc.
positive security assurance.

PSA British

abbreviation

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
(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

PSA Scientific

Abbreviation of prostatic-specific antigen

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The trial is assessing whether extra tests alongside PSA, such genetic checks and MRI scans, can improve screening accuracy.

From BBC • Jun. 2, 2026

All black men aged 45-74 who have not already had a recent PSA test will be offered the chance to participate.

From BBC • Jun. 2, 2026

Biden’s doctors didn’t provide prostate-specific antigen screening, which produces a PSA score that is used to help detect prostate cancer.

From The Wall Street Journal • May 31, 2026

Professional Sports Authenticator graded the card a Gem Mint 10, which the PSA site says is reserved for “virtually perfect” cards.

From Los Angeles Times • May 27, 2026

The same meme makes the rounds every storm: “Tornado season PSA: Bras on, teeth in!”

From "Legendary Frybread Drive-In" by Cynthia Leitich Smith

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023