6 letters · 10 points in Scrabble
noun a cavity in the mesoderm of an embryo that gives rise in humans to the pleural cavity and pericardial cavity and peritoneal cavity
originFrom international scientific vocabulary, from New Latin, from Ancient Greek κοίλωμα (koílōma, “hollow, cavity”). Cognate with coeliac.
Etymology from Wiktionary, CC BY-SA 3.0