カテーテルカテーテルCommon wordFreq.FrequencyTop 50,000Meanings1nouncathetermedicineMedical term for a thin tube inserted into the body. Used in clinical contexts.from German Katheter · from Dutch katheter手しゅ術じゅつ後ご、患かん者じゃにカテーテルを留りゅう置ちした。After the surgery, a catheter was placed in the patient.