dark red flesh of fish; blood-rich meat near the spine
Refers specifically to the dark, blood-rich meat found along the spine of fish like tuna and bonito. Often contrasted with the lighter, fatty flesh.
The dark red flesh of tuna is rich in iron.
血合いの部分は独特の風味がある。
The blood-rich meat has a distinctive flavor.
Standard spelling with okurigana.
Variant without okurigana; also common.
Compound of 血 (chi, 'blood') and 合い (ai, 'joining' or 'meeting'), referring to the area where blood concentrates along the spine.