noun, noun which may take the genitive case particle 'no'
cause of a disease; etiology
Medical term for the origin or cause of an illness. Often used in formal or clinical settings.
The cause of this disease has not yet been clarified.
Detailed tests are needed to identify the cause of the disease.
死因 is the cause of a person's death, while 病因 refers to the cause of a disease, not death itself.
etiology; aetiology
Compound of 病 (disease) and 因 (cause). The reading is on'yomi, and the word is used primarily in medical terminology.