Definition of midriff in English:
1The region of the front of the body between the chest and the waist.
- She wore a black, leather, sleeveless top that laced in the front, leaving her midriff bare.
- It starts to occur in the chest instead of the midriff.
- Her dress had a large tear cut across the midriff under her chest so that it hung open, revealing most of her stomach.
1.1 Anatomy , dated The diaphragm.
Old English midhrif, from mid1 + hrif 'belly'.