stomodeum

[stoh-muh-dee-uh m, stom-uh-]

noun, plural sto·mo·de·a

[stoh-muh-dee-uh, stom-uh-] /ˌstoʊ məˈdi ə, ˌstɒm ə-/. Embryology.

a depression in the ectoderm of the oral region of a young embryo, which develops into the mouth and oral cavity.

Origin of stomodeum

1875–80; < New Latin < Greek stóm(a) stoma + hodaîon (neuter singular) on the way; akin to -ode²

Related formssto·mo·de·al, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

stomodeum in Medicine

(stō′mə-dē′əm)

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.

Related formssto′mo•de′al adj.