| PS | a note appended to a letter after the signature |
|---|---|
| PS | a protein manufactured exclusively by the prostate gland |
| PS | a blood test that measures levels of a protein called prostate specific antigen that is manufactured exclusively by the prostate gland |
| PS | any sacred song used to praise the Deity |
| PS | one of the 150 lyrical poems and prayers that comprise the Book of Psalms in the Old Testament |
| PS | a composer of sacred songs |
| PS | the act of singing psalms or hymns |
| PS | a collection of Psalms for liturgical use |
| PS | the third compartment of the stomach of a ruminant |
| PS | an ancient stringed instrument similar to the lyre or zither but having a trapezoidal sounding board under the strings |
| PS | a genus of Paridae |
| PS | a tumor derived from fibrous tissue of the meninges or choroid plexus or certain other structures associated with the brain |