the bowels of sth
the parts of something that are furthest away from the outside:
The fire started deep in the bowels of the ship.
Thesaurus: synonyms and related words
Centres of objects
- bowel
- center
- center of gravity
- central
- centrality
- centrally
- centre
- centre of gravity
- core
- hub
- inner ring
- innermost
- inside
- interior
- median
- mid
- middle
- midpoint
- midway
- off-centre