PB

PB

1. Abbreviation for Petabyte. 2⁵⁰) bytes.

2. Abbreviation for Play Back.

3. In chemistry Pb stands for Lead. Lead is a soft metal, historically commonly used for pipes, roofing and in paint. Less commonly used today because of its damaging effects on people's health.

For more information see:

• www.lenntech.com/Periodic-chart-elements/Pb-en.htm - Chemical properties, Health and Environmental effects of Lead.

4. In sport PB stands for Personal Best.

5. Paper Back. Abbreviation sometimes used in auctions or advertisements to indicate that a book is paper back (and not hard back).