用法:
1 study of causes and reasons 原因论（对原因及成因的研究）.

用法:
2 (medicine 药) study of the causes of disease 病原学; 病因学:
the aetiology of malaria 疟疾的病因研究.

• indoctrination
• Indo-European
• indolence
• indolent
• indolently
• indomitable
• indomitably
• indoor 1
• indorse
• indrawn
• indubitable
• indubitably
• induce
• inducement
• inducible
• induct
• induction
• induction-coil
• induction motor
• inductive
• inductively
• indulge
• indulgence
• indulgent
• indulgently