underbelly
(un′dər bel′ē)
noun
- the lower, posterior part of an animal's belly
- any vulnerable or unprotected area, region, point, etc.
See underbelly in American Heritage Dictionary 4
noun pl. un·der·bel·lies - The soft belly or underside of an animal's body. Also called underbody.
- The vulnerable or weak part: “So much . . . can be learned from these and other neglected sources from the underbelly of traditional scholarship” (Stephen Jay Gould).
Learn more about underbelly