endoderm
nounUK /ˈɛndəʊdɜːm/
US /ˈɛndoʊdɜːrm/
The endoderm is the inside layer of cells in a young animal that grows into its guts and other inner parts.
During development, the endoderm forms the lining of the digestive tract.
RELATED WORDS
OTHER MEANINGS
2. The innermost layer of cells in a plant's seed or root.
The endoderm of the seed protects the young plant inside.
3. The inner tissue layer of certain simple animals such as jellyfish.
In cnidarians, the endoderm lines the digestive cavity.
4. A layer of cells lining internal cavities in some invertebrates.
The endoderm secretes enzymes into the gut of the worm.