| KAFO | knee-ankle-foot orthosis |
|---|---|
| KAL | Kallmann [syndrome] |
| Kal | potassium [Lat. kalium] |
| KAO | knee-ankle orthosis |
| KAP | knowledge, aptitude, and practice |
| KAP study | Knowledge, Attitude & Practice study |
| kappa | a light chain of human immunoglobulins [chain] |
| KAS | Katz Adjustment Scales; Kennedy-Alter-Sung [syndrome] |
| KAT | kanamycin acetyltransferase |
| kat | katal |