- middle, midriff, midsection - the middle area of the human torso (usually in front); "young American women believe that a bare midriff is fashionable"
--1 is a kind of area, region
--1 is a part of torso, trunk, body - diaphragm, midriff - (anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration
--2 is a kind of muscular structure, musculature, muscle system; membrane, tissue layer
--2 is a part of torso, trunk, body