Definition

A type of tiny, single-celled algae that have a hard outer shell made of silica. They are often found in water and can be either alone or in groups.

Example

Diatoms play an important role in the aquatic food chain and are used in various scientific studies.

Conversation

Have you ever studied about diatom algae in biology class?

Yeah, I remember they have those unique silica walls.

Exactly! They’re so interesting and important for the ecosystem.

For sure, they play a big role in water quality and food chains.

Synonyms & Antonyms

Root Explanation

Diatom → It is formed from "dia-" (meaning through or across) and "tomos" (from Greek, meaning cut). The word refers to organisms that have a unique structure, often described as being cut through or divided by their silica cell walls.

Memory Tip

Think of 'cutting through' ('dia-') with a unique structure ('tomos') — that's why diatoms are tiny organisms with intricate, cut-like designs.

Visually Confused Words