Pm

symbol

the chemical element promethium.

1. the prime minister.

   a private meeting with the PM

2. a post-mortem.

   it was important to be present at the PM if the pathologist would allow it.

3. a private message sent on social media, an online forum, etc.

   drop me a PM if you want more details

1. 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

1. after noon (used after times of day between noon and midnight that are not expressed using the 24-hour clock).

   at 3.30 p.m.

from Latin post meridiem .

noun, symbol

the chemical element of atomic number 61, a radioactive metal of the lanthanide series. It was first produced artificially in a nuclear reactor and occurs in nature in traces as a product of uranium fission.

1940s: modern Latin, from the name of the Titan Prometheus.