celom cell wall • celoma · · · Info · Definitions · Synonyms · Characters · · celom · · Text Latin · · Script 5 · · Length 2 · · Syllables Definitions · · · (noun) a cavity in the mesoderm of an embryo that gives rise in humans to the pleural cavity and pericardial cavity and peritoneal cavity. Synonyms: coelom, celoma. · · Noun Definition 1 Synonyms · · · coelom · · Synonym 1 celoma · · Synonym 2 Characters · · c latin small letter c U+0063 e latin small letter e U+0065 l latin small letter l U+006C m latin small letter m U+006D o latin small letter o U+006F