Initialism of polysialic acid. / (medicine, immunology) Initialism of prostate-specific antigen. / Initialism of pressure-sensitive adhesive. / Initialism of pressure swing adsorption.

Initialism of Pacific Southwest Airlines. / Initialism of Peugeot S.A. (“Peugeot-Citroen”)., a French automaker.

Abbreviation of Psalms.

(pathology) Initialism of persistent sexual arousal syndrome.

plural of PSA

(religion, music) A sacred song; a poetical composition for use in the praise or worship of God.

To extol in psalms; to make music; to sing

A writer of psalms, such as the biblical King David.

(biblical) A book of the Old Testament of the Bible, and of the Tanakh.

(Christianity) Synonym of Psalms, particularly when printed as a separate work from the Bible. / (Catholicism) Synonym of breviary, which arranges the Psalms for devotional recitation.