PNA has many meanings according to the branch:
Navigation/Computing
Chemistry
- Peptide nucleic acid, an artificially synthesized polymer similar to DNA or RNA and is used in biological research and medical treatments.
- Polynuclear Aromatic Hydrocarbons, more commonly referred to as Polycyclic aromatic hydrocarbons (PAHs)
- Paranitroanilide (pNA), a group added to peptides which allows colorometric analysis of protease activity
Biology
Computing
- HomePNA, a home computer networking standard using standard telephone cabling
Health (foot care)
- Partial Nail Avulsion, treatment of ingrown toenails
Horticulture
- Pna, the abbreviation for orchid genus Paphinia
Meteorology
Transportation
Politics and Government
Society
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