PA

PA

1. The ISO 3166-1 two-letter (alpha-2) code for Panama.
2. (metrology) Symbol for the petaampere, an SI unit of electrical current equal to 10¹⁵ amperes.

PA

1. Pennsylvania, a state of the United States of America
2. Papua, a province of Indonesia
3. Pará, a state of Brazil
4. Palestinian Authority
5. Proto-Algonquian (sometimes abbreviated PAn to distinguish it from Proto-Algic, but usually just abbreviated PA with Proto-Algic being abbreviated PAc)
6. Proto-Algic (sometimes abbreviated PAc to distinguish it from Proto-Algonquian)
7. Proto-Athapaskan

PA (countable and uncountable, plural PAs)

1. Public address.
2. Personal assistant.
3. Power amplifier.
4. Prince Albert (piercing).
5. Public accountant.
6. (law) Public Act.
7. Physician assistant.
8. Per annum (i.e. interest).
9. (organic chemistry) Polyamide.
10. (chemistry) pyrrolizidine alkaloid
11. Peano arithmetic.
12. (anatomy) Initialism of pulmonary artery.

• A&P, AP, Ap, ap, ap.

PA

1. CV (“aircraft carrier”); Initialism of porte-avions.

• AP

PA

1. Abbreviation of Pará. (Brazilian state)

PA f (plural PA)

1. (medicine) Initialism of presión arterial.
2. (biology) Initialism of potencial de acción.