| Name | Description | 
|---|---|
| Kapok | a soft downy substance used for stuffing pillows, etc. | 
| Ketonuria | Presence of ketone in the urine. | 
| Lachrymatory | An agent that induces the flow of tears. | 
| Lactagogue | Galactagogue. | 
| Lactifuge | an agent that checks the secretion of milk. | 
| Lactogogue | a substance which stimulates the flow of milk.. | 
| Laryngitis | Inflammation of the larynx. | 
| Laxative | a substance which helpe evacuate the bowels. | 
| Leishmaniasis | a tropical disease transmitted by flies. | 
| Leprosy | Chronic contagious diseases due to infection with Lepra bacillus. |