Translation guide
An adjuvant is a substance added to a vaccine or medication to enhance the body's immune response. In Japanese, this is primarily a medical term with a direct equivalent, but the concept can also be expressed descriptively.
A substance that enhances the immune response to a vaccine or drug
The standard loanword used in medical contexts. Widely understood among healthcare professionals.
This vaccine contains an adjuvant.
A descriptive term meaning 'immune booster' or 'immunostimulant'. Used in medical explanations or when avoiding loanwords.
Aluminum salts are used as an adjuvant.
A more technical term meaning 'immunopotentiator'. Found in specialized literature.
This adjuvant promotes antibody production.
Something that assists or enhances an effect
Literally 'auxiliary agent'. Can be used in broader contexts beyond medicine, such as in agriculture or chemistry.
This pesticide contains an adjuvant.
A descriptive phrase meaning 'something that enhances effectiveness'. Useful when explaining the concept to non-specialists.
アジュバント is the direct loanword and is standard in medical contexts. 免疫増強剤 is a native Japanese term that is more descriptive but less common in everyday medical conversation. Use アジュバント when speaking with healthcare professionals or in formal medical documents.
Side effects vary depending on the type of adjuvant.
Do not translate 'adjuvant' as 補助者 or 助手, as these refer to human assistants. Stick to the medical or chemical terms above.
This ingredient works as an adjuvant to the medication.