|a scrap or morsel of food left at a meal.|
|a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.|
entoblast en·to·blast (ěn'tə-blāst') or en·do·blast (ěn'də-)
Any of the blastomeres of an embryo from which the endoderm develops.