Definition

A type of rock that is used in the production of glass and ceramics, often found in deposits that can be mined.

Example

The factory uses gannister to create high-quality glass products.

Conversation

Have you ever heard of gannister?

No, I haven't. What is it?

It's a type of rock used in making refractory materials.

That sounds interesting! I didn't know rocks could be used like that.

Synonyms & Antonyms

Root Explanation

The word 'gannister' originates from Old English 'ganister', meaning a type of container or vessel, particularly for liquids. It refers specifically to a type of jug or pitcher used for holding and pouring.

Memory Tip

Think of a 'container' or 'vessel' that holds liquids — that's what a gannister is, a jug or pitcher.

Visually Confused Words