カイロ

[kairo]

a pocket warmer

---
使い捨てカイロ: a disposable pocket warmer

カルテ

[karute]

a medical chart/record

Example:
電子カルテ: an electronic medical chart/record

Note:
"カルテ" is derived from the German language.

カリウム

[kariumu]

potassium

Example:
炭酸カリウム: potassium carbonate

Note:
"カリウム" is derived from the German language.

カンニング

[kanningu]

cheating