or stomodeum (ˌstəʊməˈdiːəm, ˌstɒm-) or stomatodaeum (stəˌmætəˈdiːəm)
nounWord forms: plural-daea or -dea (-ˈdiːə)
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
Derived forms
stomodaeal (ˌstomoˈdaeal) or stomodeal (ˌstomoˈdeal)
adjective
Word origin
C19: from New Latin, from Greek stoma mouth + hodaios on the way, from hodos way
stomodaeum in American English
(ˌstoʊməˈdiəm; ˌ stɑməˈdiəm) or ˌstomoˈdeum (ˌstoʊməˈdiəm; ˌ stɑməˈdiəm)
nounWord forms: pluralˌstomoˈdaea (ˌstoʊməˈdiə; ˈstɑmədiə) or ˌstomoˈdea (ˌstoʊməˈdiə; ˌstɑməˈdiə)
the anterior portion of the digestive tract of an embryo, lined with ectoderm and including the mouth area
Word origin
ModL < Gr stoma, mouth (see stoma) + hodios, on the way < hodos, way, road < IE *sed-, to go < base *sed-, sit