| Abbreviations | Meaning |
 | PNA | Paris Nomina Anatomica; Peanut Agglutinin; Pentose Nucleic Acid; P-nitroaniline |
| AADC | Amino Acid Decarboxylase; L-aromatic Amino Acid Decarboxylase |
| Z-DNA | Zig-zag (left-handed Helical) Deoxyribonucleic Acid |
| UAP | Unlicensed Assistive Personnel; Unstable Angina Pectoris; Urinary Acid Phosphatase; Urinary Alkaline Phosphatase |
| GLU | Glucose; Glucuronidase; Glutamate; Glutamic Acid |
| ASP | Aspartame; Aspartate, Aspartic Acid; Aspiration; Automatic Signal Processing |
| TGFA | Transforming Growth Factor Alpha; Triglyceride Fatty Acid |
| ASX | Amino Acid That Gives Aspartic Acid After Hydrolysis; Asymptomatic |
| ABC | Abacavir; Absolute Basophil Count; Absolute Bone Conduction; Acalculous Biliary Colic; Acid Balance Control; Aconite-belladonna-chloroform |
| OHIAA | Hydroxyindoleacetic Acid |
| PH | Hydrogen-ion Concentration - Acid / Alkaline |
| PTCA | Percutaneous Transluminal Coronary Angiography; Percutaneous Transluminal Coronary Angioplasty; Pyrrole-2,3,5-tricarboxylic Acid |
| DOMA | Dihydroxymandelic Acid |
| POLY-G, POLY(G) | Polyguanylic Acid |
| TCA | Tricarboxylic Acid |
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