血行|けっこうkekkou[0]heiban (flat)

1. nouncirculation (of the blood)
   適度てきどな運動うんどうは血行けっこうをよくする。↗

   Moderate exercise stimulates the circulation of the blood.

• Synonym血液循環けつえきじゅんかんWrittenWritten, medical term for the working of the blood-circulation system; 「血行」 is the everyday word and covers both local and whole-body circulation.
• Synonym血の巡りちのめぐりCasualColloquial word for the flow of blood; it also refers to how quick one's thinking is, as in 「血の巡りが悪い」.
• Antonym血流停滞WrittenWritten term for stagnant blood flow; the opposite of good 「血行」, and rarely used.
• Antonym瘀血WrittenTerm from Chinese medicine for blood stasis, blood that has stagnated rather than flowing freely; the opposite of good 「血行」, and rarely used.

Use 「血行」 for blood circulation, local or whole body, as in 「血行が良くなる」「血行が悪い」. In medical writing use 「血液循環」; in casual speech 「血の巡り」 also covers quickness of thinking. The antonyms 「血流停滞」 and 「瘀血」 are rare.

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

1. 血液けつえきの循環じゅんかん。血ちのめぐり。