noun
back fat; fatty upper part of roast pork
Culinary term for the layer of fat along a pig's back, prized for adding richness to dishes like ramen and chashu.
ラーメンに背脂をたっぷり入れてもらった。
I had them put plenty of back fat in my ramen.
このチャーシューは背脂の部分が特に美味しい。
The fatty upper part of this roast pork is especially delicious.
脂身 refers to fatty meat in general, while 背脂 specifically means back fat, often from pork.
Compound of 背 (se, 'back') and 脂 (abura, 'fat').