1. the innermost layer of cells in an embryo that develops into the digestive tract and associated organs
Usage: biology

Examples

• The endoderm gives rise to the lining of the digestive system.
• During embryonic development, the endoderm forms the innermost germ layer.
• The liver and pancreas develop from endoderm tissue.
• Scientists study how the endoderm differentiates into various organs.
• The endoderm is one of the three primary germ layers in vertebrate embryos.
• Cells from the endoderm will eventually form the respiratory system lining.