Definition

A tiny living thing that can only be seen with a microscope, such as bacteria or protozoa.

Example

Microorganisms play a crucial role in the ecosystem by breaking down organic matter.

Conversation

Have you heard about the tiny microorganism they discovered in the ocean?

Yeah, I read something about it! It's fascinating how small they can be.

I find it amazing that such a small microorganism can have such a big impact on the ecosystem.

Absolutely! It shows how interconnected everything is, even at a microscopic level.

Synonyms & Antonyms

Root Explanation

Microorganism → It is formed from "micro-" (from Greek "mikros", meaning small) and "organism" (from Greek "organismos", meaning an organized body or living being). The word "microorganism" refers to a small living entity that can only be seen under a microscope.

Memory Tip

Think of 'small' ('micro-') living things ('organism') that are too tiny to see without a microscope.

Visually Confused Words