noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   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.

Etymology

From endo- + phallus.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.