| YP | yeast phase; yield pressure |
|---|---|
| YPA | yeast, peptone, and adenine sulfate |
| ACE | acetonitrile; acetylcholine esterase; acute cerebral encephalopathy; acute coronary event; adrenocor... |
| BTE | behind the ear [hearing aid]; bovine thymus extract |
| B&W | black and white [milk of magnesia and cascara extract] |