Click on the appropriate first letter of the abbreviation that you require



























| X | Crossing (as in roads and rivers) |
| Experimental | |
| X-Band | 7 900 to 8 400 MHz |
| XAML | Extensible application markup language |
| XBT | Expendable bathy-thermograph |
| XGA | Extended graphics array |
| XLANG | Extensible language |
| XML | Extensible markup language |
| xpd | Expedite |
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