Definition

A smooth and often shiny surface on a rock that is created when one rock slides over another, usually along a fault line.

Example

The geologist examined the slickenside to understand the movement of the tectonic plates.

Conversation

Have you ever seen a in nature?

No, I haven't! What is it exactly?

It's a polished rock surface formed when one rock slides over another.

That sounds really interesting! I'd love to see one.

Synonyms & Antonyms

Root Explanation

Slickenside is formed from "slick" (from Old Norse "slykr", meaning smooth or slippery) and "-enside" (a variant of "side", meaning a surface or aspect). The term refers to a smooth surface created by the movement of geological materials, often seen in fault lines.

Memory Tip

Think of 'slick' meaning smooth or slippery, which helps you remember that 'slickenside' refers to a smooth geological surface.

Visually Confused Words