| Acronym | Definition |
|---|
| PbtA➣Powered by the Apocalypse (gaming) |
| PbtA➣Praise Be to Allah |
| PbtA➣Philadelphia Behavior Therapy Association (Philadelphia, PA) |
| PbtA➣Pittsburgh Business Travel Association (Pittsburgh, PA) |
| PbtA➣Profit Before Taxation and Amortisation (finance) |
| PbtA➣Planar Bow-Tie Antenna |
| PbtA➣Protein-Binding Transcriptional Activator |