Definition

A small, round particle made up of layers of minerals, often found in sedimentary rocks, especially limestone.

Example

The geologist examined the ooliths under a microscope to study their structure.

Conversation

Have you ever heard of oolith before?

No, I haven't. What is it?

It's a type of granule made of minerals, often found in limestone.

That sounds interesting! I'd love to learn more about it.

Synonyms & Antonyms

Root Explanation

Oolith → It is formed from "oo-" (from Greek "ōon", meaning egg) and "-lith" (from Greek "lithos", meaning stone). The word "oolith" refers to a type of sedimentary rock composed of small, rounded grains that resemble eggs.

Memory Tip

Think of 'egg' ('oo-') and 'stone' ('lith') to remember that an oolith is a rock made of small, egg-like grains.

Visually Confused Words