noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The foramen or passage through the inner integument of an ovule.
2. 2
   The inner peristome of mosses.
3. 3
   An endostoma.

Etymology

From endo- + -stome.

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