光波显音器：将放大的声音通过扩音器转变成光波的灯，用来记录胎儿心跳- kibisitome
- kidney
- Kielland's(Kjelland)forceps
- Kiernan's spaces
- Kiesselbach's area(space)
- kil
- Kilian's line
- killeen
- Killian-Freer operation
- Killian's operation
- Killian's test
- kilo-
- kilobase
- kilocalorie
- kilocurie
- kilocycle
- kilogram
- kilohertz
- kilometer
- kilounit
- kilovolt
- Kimberley horse disease
- Kimmelstiel-Wilson syndrome
- kinanesthesia
- kinase