also: したばら · かふく
noun
lower abdomen; belly; underbelly
Refers to the lower part of the abdomen, often the area below the navel. Can also be used figuratively for the underside or lower part of something.
運動不足で下腹が出てきた。
My lower belly is sticking out from lack of exercise.
魚の下腹の部分は脂がのっていて美味しい。
The belly part of the fish is fatty and delicious.