pa

[ pah, paw ]
/ pɑ, pɔ /

noun Informal.

Nearby words

Origin of pa

short for papa

Definition for pa (2 of 8)

Pa


Physics.

pascal; pascals.

Definition for pa (3 of 8)

Pa


Symbol, Chemistry.

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.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for pa

British Dictionary definitions for pa (1 of 7)

pa

1
/ (pɑː) /

noun

an informal word for father

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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for pa (1 of 2)

Pa


The symbol for the elementprotactinium

Medicine definitions for pa (2 of 2)

PA


abbr.

physician's assistant
posteroanterior
pulmonary artery
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for pa (1 of 2)

Pa


Abbreviation of pascal
The symbol for protactinium.

Science definitions for pa (2 of 2)

protactinium

[ prō′tăk-tĭnē-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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.