相互作用|そうごさようsougosayou
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- nouninteraction
- Synonym交互作用こうごさようWrittenWritten/formal prose; a statistics term for when one factor's effect changes with another. 「相互作用」 is broader, covering mutual action in physics and biology.
- SynonymインタラクションNeutralNeutral loanword, mostly for human–machine interaction and communication; 「相互作用」 is the usual choice in scientific terminology.
- Antonym単独作用WrittenWritten/formal prose; a single factor acting alone, the opposite of the mutual influence that 「相互作用」 describes.
Default to 「相互作用」 in scientific contexts. Use 「交互作用」 for statistics (one factor's effect varies with another) and 「インタラクション」 for human–machine interaction; 「単独作用」 is its antonym, a lone factor acting.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only


