stomodeum

American  

[stoh-muh-dee-uhm, stom-uh-] / ˌstoʊ məˈdi əm, ˌstɒm ə- /

noun

Embryology.

PLURAL

stomodea

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

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Other Word Forms

• stomodeal adjective

Etymology

Origin of stomodeum

1875–80; < New Latin < Greek stóm ( a ) stoma + hodaîon (neuter singular) on the way; akin to -ode ²