1D
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Look up 1d in Wiktionary, the free dictionary. |
1D may refer to:
- Alpha-1D adrenergic receptor
- Astra 1D, a satellite
- Canon EOS-1D, Canon's first professional digital camera
- Long March 1D, a satellite
- One-dimensional space in physics and mathematics
- One Direction, a British-Irish pop music band
- Penny (British pre-decimal coin), routinely abbreviated 1d.
See also
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