| KGM | keratinocyte growth medium |
|---|---|
| K-MCM | potassium-containing minimum capacitation medium |
| KR | key-ridge; Kopper Reppart [medium] |
| L-variant | a defective bacterial variant that can multiply on hypertonic medium |
| LB | lamellar body; large bowel; left breast; left bronchus; left bundle; left buttock; leiomyoblastoma; ... |