# nostoc

> English word · Noun

## Definitions
1. Any member of the genus Nostoc of cyanobacteria, found in a variety of environmental niches, that form colonies composed of filaments of moniliform cells in a gelatinous sheath.

## Etymology
From the genus name.

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