Search Result：p.a
p.a 
(TTS Sound)
(TTS Sound)Overview of noun p.a
The noun pa has 5 senses
- dad, dada, daddy, pa, papa, pappa, pop -- (an informal term for a father; probably derived from baby talk)
- protactinium, protoactinium, Pa, atomic number 91 -- (a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead)
- pascal, Pa -- (a unit of pressure equal to one newton per square meter)
- Pennsylvania, Keystone State, PA -- (a Mid-Atlantic state; one of the original 13 colonies)
- public address system, P.A. system, PA system, P.A., PA -- (an electronic amplification system used as a communication system in public areas)