Definition of 'P-A'

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1. (noun) dad, dada, daddy, pa, papa, pappa, pop
an informal term for a father; probably derived from baby talk

2. (noun) protactinium, protoactinium, Pa, atomic number 91
a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead

3. (noun) pascal, Pa
a unit of pressure equal to one newton per square meter

4. (noun) Pennsylvania, Keystone State, PA
a Mid-Atlantic state; one of the original 13 colonies

5. (noun) public address system, P.A. system, PA system, P.A., PA
an electronic amplification system used as a communication system in public areas

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"P-A." Definitions.net. STANDS4 LLC, 2009. 9 January. 2009. http://www.definitions.net/definition/P-A

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