The midportion of the insect alimentary canal and site of digestion; the m. may possess anterior finger-like projections, the gastric ceca, and a tubular anterior midgut, followed posteriorly by the saccular ventriculus, or stomach. [mes- + G. enteron, intestine]
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mes·en·ter·on (')mez-'ent-ə-.rän, (')mēz-, (')mēs-, (')mes-, -rən n, pl -tera -ə-rə the part of the alimentary canal that is developed from the archenteron and is lined with hypoblast
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mes·en·ter·on (mez-enґtər-on) [meso- + enteron] midgut.Medical dictionary. 2011.