The Collaborative International Dictionary
Colleterium
Colleterium \Col`le*te"ri*um\, n. [NL. See Colletic.] (Zo["o]l.) An organ of female insects, containing a cement to unite the ejected ova.
Wiktionary
colleterium
n. (context zoology English) An organ, in female insects, containing a cement to unite the ejected ovum.