# pisoid

> English word · Noun

## Definitions
1. A concretionary grain, typically of calcium carbonate, between a microid and a macroid in size.

## Etymology
From Latin pisum + -oid.

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