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Meaning of underbelly

un•der•bel•ly

Pronunciation: (un'dur-bel"ē), [key]
— pl. -lies.
  1. the lower abdomen; posterior ventral area, as of an animal's body.
  2. the lower surface of an object; underside: the underbelly of an airplane.
  3. a vulnerable area; weak point: an attack on the soft underbelly of Europe.
  4. a dark, seamy, often hidden area or side: a police officer continually exposed to the underbelly of society.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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