midsection (plural midsections)

  1. The middle section of something.
  2. The midriff; the section of the human torso, from below the chest to above the waist.
    • 2010, Bill Geiger, "6-pack Abs in 9 Weeks", Reps! 17:106
      That's the premise of the overload principle, and it must be applied, even to ab training, if you're going to develop a cut, ripped midsection.