p-m
Permanent Magnet (AD)
Phase Modulation (AD)
pM
Picomoler [One trillionth of a mole] (AAMN)
P & M
Law Reports, Probate and Matrimonial Cases [England] [A publication] (DLA)
Pollock and Maitland's History of English Common Law [A publication] (DLA)
Probate and Matrimonial [Legal] [British]
Processes and Materials (NASA)
P/M
Pacific Molasses (AD)
Parent-Metabolite Ratio [Medicine] (MEDA)
Parts per Million (IEEE)
Physical Medicine [Medical officer designation] [British]
Player/Missile [Atari computers]
Put More (VLIE)
Put of More [Stock exchange term]
P&M
Performance Monitor (SAUS)
Phase Modulated (or Modulation) (SAUS)
Planetary Mission (SAUS)
Program Milestone (SAUS)
Protection and Maintenance (ALAC)
p/m
Per Month (WDAA)
Professional/Managerial (WDMC)