回路|かいろkairo[1]atamadaka (head-high)

1. noun, electrical eng.circuit
   保護ほご回路かいろを飛とばしてしまおう。↗

   Let's bypass the protection circuit.
2. noun, biologycycle (e.g. Krebs cycle)
3. nouncycle; loop

• SynonymサーキットNeutralLoanword for an electric circuit or a racing circuit (「サーキットを走る」); in everyday use mostly the race track, while 「回路」 covers electronic circuits or circuits of thought.
• Synonym電気回路でんきかいろNeutralConcrete term limited to the electrical field, common in physics textbooks; 「回路」 can also mean a pattern of thought, as in 「思考回路」.
• Related電路でんろWrittenWritten/formal word for the path of an electric current; rare — in everyday speech use 「回路」.

Use 「回路」 for loops that carry electric current or for metaphorical patterns of thought (「電子回路」, 「思考回路」); a race track is 「サーキット」, and physics textbooks use 「電気回路」.

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

1. 電気でんきが流ながれる環状かんじょうの道筋みちすじ。
2. 上うえのうち、論理ろんり演算えんざんや記憶きおくを行おこなうためのもの。
3. 流体りゅうたいやエネルギーなどが流ながれる環状かんじょうの道筋みちすじ。
4. 循環じゅんかん的てきな代謝たいしゃ経路けいろ。