такие варианты есть в Википедии Pdr or PDR may refer to:
Packet Delivery Ratio Paintless Dent Repair Peripheral Distributor Road (Cardiff) Personal Development Review Photon-Dominated Regions Physicians' Desk Reference Playa del Rey, Los Angeles, California Population and Development Review Pounder referring to Pound (mass) used as measure of calibre Preliminary Design Review Professional Disk Recorder, a Hard disk recorder from Grass Valley (company)