endophallus

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noun

The inner wall of the aedeagus of an insect, derived during embryological development by the fusion of paired genital papillae to form a medial tube. The endophallus is eversible and flexible, is the actual intromittent organ, and sometimes has backward-orientated denticulations to achieve a firm hold on the vaginal walls of the female.

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Meanings

noun
  1. biologyThe inner wall of the aedeagus of an insect, derived during embryological development by the fusion of paired genital papillae to form a medial tube. The endophallus is eversible and flexible, is the actual intromittent organ, and sometimes has backward-orientated denticulations to achieve a firm hold on the vaginal walls of the female.

Origin

From endo- + phallus.

Full word history & related roots →
Cite this entry
APA

endophallus. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/endophallus

MLA

“endophallus.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/endophallus. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “endophallus,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/endophallus.

Source: endophallus on Wiktionary, CC BY-SA 4.0.