stomodeum

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

/ ˌstoʊ məˈdi əm, ˌstɒm ə- /

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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.

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THINGAMABOB OR THINGUMMY: CAN YOU DISTINGUISH BETWEEN THE US AND UK TERMS IN THIS QUIZ?

Do you know the difference between everyday US and UK terminology? Test yourself with this quiz on words that differ across the Atlantic.

Question 1 of 7

In the UK, COTTON CANDY is more commonly known as…

Origin of stomodeum

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

sto·mo·de·al, adjective