COELOM /ˈsiːləm/ Scrabble 10 Words With Friends 13 Definition 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: celom, celoma See all 27 words you can make from COELOM → 6-letter words Words starting with C Words ending with M ← Unscramble different letters