# pleuston

> English word · Noun

## Definitions
1. The organisms that live floating at the surface of water.
2. Plants that live floating at the surface of water.

## Etymology
From Ancient Greek πλεῦσις (pleûsis, “sailing”), from πλέω (pléō) + -on. The -t- is on analogy with the coordinate terms.

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