# mesothecium

> English word · Noun

## Definitions
1. The intermediate layer of cells in the wall of the anther, in ripe anthers often occurring as the inner layer by disappearance of the endothecium proper.

## Etymology
From meso- + theca (“pollen-producing organ”) + -ium.

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