Pronunciation: prok'to-de'um, -de'a
Definition: Terminal portion of the insect alimentary canal, extending from the pylorus (area of malpighian tubule attachment) to the anal opening; in certain diptera (flies) and other insects, the proctodeum is divided into a tubular anterior intestine and an enlarged posterior intestine, or rectum, ending at the anus.
Synonym(s): anal pit
[L. fr. G. proktos, anus + hodaios, on the way, fr. hodos, a way]
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