pit of the stomach is a noun meaning "a slight depression in the midline just below the sternum (where a blow can affect the solar plexus)". It carries one recorded sense.
a slight depression in the midline just below the sternum (where a blow can affect the solar plexus)
Definitions, synonyms and semantic relations for pit of the stomach come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.