| KPV | key process variable; killed parenteral vaccine |
|---|---|
| KQC | key quality characteristics |
| KR | key-ridge; Kopper Reppart [medium] |
| ACR | abnormally contracting region; absolute catabolic rate; acriflavine; adenomatosis of colon and rectu... |
| ARF | acute renal failure; acute respiratory failure; acute rheumatic fever; Addiction Research Foundation... |