What Does PM Stand For?

PM stands for Petametre Promethium

PM, or Petametre Promethium, is a unit of measurement derived from the metric system, where one petametre equals 10^15 meters. It is used in scientific contexts to measure extremely large distances, particularly in astrophysics and cosmology. Promethium, a rare earth element with atomic number 61, is notable for its applications in nuclear batteries and as a luminescent material. Together, PM represents both a significant unit of distance and a valuable element in advanced technological applications.

Added on 14th April 2008 | Last edited on 17th June 2025 | Edit Acronym

Other Meanings for PM