# mesoseme

> English word · Adjective

## Definitions
1. Having a medium orbital index, between megaseme and microseme.

## Etymology
From meso- + Ancient Greek σῆμα (sêma, “sign, mark”). Compare French mésosème.

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