# microplanetoid

> English word · Noun

## Definitions
1. An astronomical body smaller than a planetoid, such as an asteroid or planetesimal.

## Etymology
From micro- + planetoid.

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