The chemical element promethium.
5Postmortem.autopsy, post-mortem examination, PM, dissection, necropsy
6Prime minister.head of government, prime minister, PM, president, chief minister, chancellor
A private message sent on social media, an online forum, etc.
- ‘drop me a PM if you want more details’
transitive verbPMs, PMing, PM'd, PMed[with object]
Send (someone) a private message on social media, an online forum, etc.‘I'll PM you when I'm back online’
- ‘you said you'd PM'd me his number but I haven't received it’