Definition

A type that is part of a group of different forms or variations of a substance, often seen in materials that can exist in multiple structural forms.

Example

Graphite and diamond are two different polytypes of carbon.

Conversation

I just learned about a new term in my geology class today.

Oh really? What was it about?

It was about polytype, which refers to different types of minerals.

That sounds interesting! I love learning about mineral varieties.

Synonyms & Antonyms

Root Explanation

Polytype → It is formed from "poly-" (from Greek "polus", meaning many) and "type" (from Greek "typos", meaning impression or model). The word "polytype" refers to a type that has many forms or variations.

Memory Tip

Think of 'many' ('poly-') forms or 'models' ('type') — that's what polytype means.

Visually Confused Words