pa
[ pah, paw ]
/ pɑ, pɔ /
noun Informal.
Origin of pa
short for
papa
Definition for pa (2 of 8)
Pa
Physics.
pascal; pascals.
Definition for pa (3 of 8)
Definition for pa (4 of 8)
PA
Parents' Association.
paying agent.
Pennsylvania (approved especially for use with zip code).
physician's assistant.
press agent.
public-address system.
Definition for pa (5 of 8)
Definition for pa (6 of 8)
P.A.
Definition for pa (7 of 8)
p.-a.
public-address system.
Definition for pa (8 of 8)
p.a.
participial adjective.
per annum.
press agent.
Example sentences from the Web for pa
British Dictionary definitions for pa (1 of 7)
British Dictionary definitions for pa (2 of 7)
pa
2
pah
/ (pɑː) /
noun NZ
a Māori village or settlement
history
a Māori defensive position and settlement on a hilltop
go back to the pa
to abandon city life in favour of rural life
Word Origin for pa
Māori
British Dictionary definitions for pa (3 of 7)
pa
3
the internet domain name for
Panama
British Dictionary definitions for pa (4 of 7)
Pa
the chemical symbol for
protactinium
symbol for
pascal
British Dictionary definitions for pa (5 of 7)
PA
abbreviation for
British Dictionary definitions for pa (6 of 7)
Pa.
abbreviation for
Pennsylvania
British Dictionary definitions for pa (7 of 7)
p.a.
abbreviation for
per annum
Word Origin for p.a.
Latin: yearly
Medical definitions for pa (1 of 2)
Pa
The symbol for the elementprotactinium
Medical definitions for pa (2 of 2)
PA
abbr.
physician's assistant
posteroanterior
pulmonary artery
Scientific definitions for pa (1 of 2)
Pa
Abbreviation of pascal
The symbol for protactinium.
Scientific definitions for pa (2 of 2)
protactinium
[ prō′tăk-tĭn′ē-əm ]
Pa
A rare, extremely toxic, radioactive metallic element of the actinide series that occurs in uranium ores. It has 13 known isotopes, the most stable of which is protactinium 231 with a half-life of 32,760 years. Atomic number 91; approximate melting point 1,550°C; specific gravity 15.37; valence 4, 5. See Periodic Table.