How to say "differential" in Japanese

• ディファレンシャル
  prenominal modifierCovers 'differential' as a loanword, especially the automotive differential gear. As a katakana borrowing it is less common, so use it mainly when the technical term itself is expected.
• 差動さどう
  prenominal modifierUsed for 'differential' in the sense of differential motion in engineering, as in mechanisms where parts move at different rates. It belongs to technical engineering contexts rather than everyday language.
• 示差しさ
  prenominal modifierAppears in scientific and laboratory contexts for 'differential' methods of measurement or analysis. It is a technical written term, seldom the word you want outside such specialized usage.
• 微分びぶん
  nounThe word for 'differential' and 'derivative' in mathematics, referring to the calculus concept. If your 'differential' is a mathematical one, this is the word to reach for.

Choose by field: 「ディファレンシャル」 for the mechanical part, 差動 for differential motion in engineering, 示差 for differential methods in scientific measurement, and 微分 for the mathematical sense.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• ディファレンシャルdifferential
• 差動さどうdifferential (e.g. motion)
• 示差しさdifferential
• 微分びぶんdifferential