# alga

> English word · Noun · IPA /ˈæl.ɡə/ · frequency rank #64,173

## Definitions
1. Any of many aquatic photosynthetic organisms, including the seaweeds, whose size ranges from a single cell to giant kelps and whose biochemistry and forms are very diverse, some being eukaryotic.

## Etymology
From Latin alga.

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