[stoh-muh-dee-uh m, stom-uh-]
- a depression in the ectoderm of the oral region of a young embryo, which develops into the mouth and oral cavity.
Origin of stomodeum
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- A midline ectodermal depression ventral to the embryonic brain and surrounded by the mandibular arch. It becomes continuous with the foregut and forms the mouth.