| Abbreviations | Meaning |
 | LA | Linoleic Acid |
 | MRNA | Messenger Ribonucleic Acid |
 | SCRNA | Small Cytoplasmic Ribonucleic Acid |
 | PTCA | Percutaneous Transluminal Coronary Angiography; Percutaneous Transluminal Coronary Angioplasty; Pyrrole-2,3,5-tricarboxylic Acid |
 | GPA(3-) | 3-guanidinopropionic Acid |
 | MAA | Maleylacetoacetic Acid |
 | AA | Active Avoidance; Acupuncture Analgesia; Acute Appendicitis; Adenine Arabinoside; Adenylic Acid; Adjuvant Arthritis; Adrenal Androgen |
 | POLY-DA, POLY(DA) | Polydeoxyadenylic Acid |
 | AFA | Acromegaloid Facial Appearance [syndrome]; Advanced First Aid; Alcohol-formaldehyde-acetic Acid [fixative] |
 | HPAH | Hydralazine Pyruvic Acid Hydrazone |
 | TCA | Total Cholic Acid |
 | AA SEQ | Amino Acid Sequence |
 | GABAA | Gamma-aminobutyric Acid Ionotropic Receptor Family A |
 | POLY-C, POLY(C) | Polycytidylic Acid |
 | HDNA | Heteroduplex Deoxyribonucleic Acid [DNA]; Hybrid Deoxyribonucleic Acid |