chest cavity chest • chest expander · · · Info · Definitions · Synonyms · Characters · · chest cavity · · Text Common · · Latin · · Scripts 12 · · Length 4 · · Syllables Definitions · · · (noun) the cavity in the vertebrate body enclosed by the ribs between the diaphragm and the neck and containing the lungs and heart. Synonyms: chest cavity, thoracic cavity. · · Noun Definition 1 Synonyms · · · thoracic cavity · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 s latin small letter s U+0073 t latin small letter t U+0074 v latin small letter v U+0076 y latin small letter y U+0079