# mesostegostom

> English word · Noun

## Definitions
1. The second-anteriormost section of the stegostom, sometimes fused with the prostegostom.

## Etymology
From meso- + stegostom.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/mesostegostom