PRD
PRD stands for:
- Perfectly Reflecting Diffuser , in reflectometry a completely matt white body, see PRD (primary normal)
- Primary Root Diffuser , a component in acoustics
- Physical Review D , an American journal for physics, see Physical Review
- Presidential Department
- Preacher (Solomos), a scripture from the Bible, see Kohelet
- Pressure Relief Device , also used in Germany as an abbreviation for pressure relief devices on gas or liquid containers for dangerous goods (bursting discs, fusible links, so-called safety valves, etc.)
- Public Relations for Research & Development
Parties:
- Partai Rakyat Democracy , political party in Indonesia
- Parti radical-démocratique , political party in Switzerland
- Partido de la Revolución Democrática , political party in Mexico
- Partido Renovador Democrático (Angola) , political party in Angola
- Partido Renovador Democrático , political party in Portugal
- Partido Revolucionario Democrático , political party in Panama
- Partido Revolucionario Dominicano , political party in the Dominican Republic
