# microatoll

> English word · Noun

## Definitions
1. A colony of coral, usually 1-3 metres in diameter that is dead on the top as a result of exposure at low tide.

## Etymology
From micro- + atoll, because the colonies superficially resemble atolls, but are much smaller.

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