Science and Mathematics
- dN, symbol of the decinewton, an SI unit of force
- dn, one of Jacobi's elliptic functions
- Dn, a Coxeter–Dynkin diagram
- Dn, a Dihedral group
- Double negative T cells, also called CD4−CD8−
Read more about this topic: DN
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“If you have science and art,
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