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Noun: underbelly  'ún-du(r),be-lee
  1. Lower side
    "the underbellies of clouds"
  2. The soft belly or underside of an animal's body
    - underbody
  3. The quality of being weak or unprotected
    "the soft underbelly of the Axis"

Derived forms: underbellies

Type of: abdomen, belly, bottom, soft spot, stomach, underneath, underside, undersurface, venter, weak part, weak spot

Encyclopedia: Underbelly