Definition

Relating to or made from diatoms, which are tiny, aquatic organisms with silica-based cell walls.

Example

The diatomaceous earth is often used as a natural pesticide in gardens.

Conversation

I just read about diatomaceous earth and how it's used in gardening.

Oh really? What makes it so special for plants?

It's supposed to improve soil drainage and provide a lot of nutrients.

That sounds awesome! I might need to try some in my garden.

Synonyms & Antonyms

Root Explanation

Diatomaceous → It is formed from "diatom" (from Greek "diatomos", meaning cut in two) and the suffix "-aceous" (meaning of or pertaining to). The word refers to something that is related to or composed of diatoms, which are a type of algae characterized by their unique silica cell walls that are often cut in two.

Memory Tip

Think of 'diatom' meaning 'cut in two' — this helps you remember that 'diatomaceous' refers to something related to these unique algae.

Visually Confused Words