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Webster 1913 Edition
Mesenteron
‖
Mes-en′te-ron
,Noun.
(Anat.)
All that part of the alimentary canal which is developed from the primitive enteron and is lined with hypoblast. It is distinguished from the stomodaeum, a part at the anterior end of the canal, including the cavity of the mouth, and the proctodaeum, a part at the posterior end, which are formed by invagination and are lined with epiblast.