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stomodaeum

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

noun

plural

stomodaea
  1. stomodeum.


stomodaeum British  
/ ˌstəʊməˈdiːəm, ˌstɒm- /

noun

  1. the oral cavity of a vertebrate embryo, which is formed from an invagination of the ectoderm and develops into the part of the alimentary canal between the mouth and stomach

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • stomodaeal adjective

Etymology

Origin of stomodaeum

C19: from New Latin, from Greek stoma mouth + hodaios on the way, from hodos way

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Each zooid has six tentacles; the stomodaeum is elongate, but the sulcus and sulculus are very feebly represented.

From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" by Various

Other mesenteries, called incomplete, are not attached to the stomodaeum, and their internal margins are free from the peristome to the basal disk.

From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" by Various

The stomodaeum lies in the sagittal plane, the funnel and tentacles in the transverse or tentacular plane.

From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" by Various

They have two circlets of tentacles, a labial and a marginal, and there is only one ciliated groove in the stomodaeum, which appears to be the sulculus.

From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" by Various

The anus is formed by a tucking in, the proctodaeum, similar to the stomodaeum.

From Text Book of Biology, Part 1: Vertebrata by Wells, H. G. (Herbert George)