pa Meaning and Definition

1. n. an electronic amplification system used as a communication system in public areas

2. n. a Mid-Atlantic state; one of the original 13 colonies

3. n. an informal term for a father; probably derived from baby talk

4. n. a unit of pressure equal to one newton per square meter

5. n. a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead