Definition

A type of bacteria that can perform photosynthesis and are usually blue-green in color. They were previously classified as algae and can sometimes fix nitrogen from the air.

Example

Cyanobacterium can be found in many aquatic environments, contributing to the ecosystem by producing oxygen.

Conversation

Have you ever heard of a cyanobacterium?

Yeah, I think they're those blue-green bacteria, right?

Exactly! They can even help with nitrogen fixation in some cases.

That's fascinating! I didn't know they played such an important role.

Synonyms & Antonyms

Root Explanation

Cyanobacterium → It is formed from "cyano-" (from Greek "kyanos", meaning dark blue) and "bacterium" (from Greek "bakterion", meaning small staff or rod). The word refers to a type of bacteria that is blue-green in color, often found in aquatic environments.

Memory Tip

Think of 'dark blue' ('cyano-') to remember that 'cyanobacterium' refers to bacteria that have a blue-green color.

Visually Confused Words