Definition

Relating to a method of mining where materials are extracted from an open surface rather than underground.

Example

The opencast mining method is often used for extracting coal and minerals.

Conversation

Did you hear about the new opencast mining project starting next month?

Yeah, I read about it — it seems like a big operation.

I wonder how they will manage the environmental impact of such opencast methods.

That's a good point; hopefully, they have a solid plan in place.

Synonyms & Antonyms

Root Explanation

Opencast is formed from "open" (from Old English "open", meaning not closed or obstructed) and "cast" (from Old Norse "kasta", meaning to throw or to place). The term refers to a method of mining where the earth is removed to expose minerals, hence it is an open area where materials are cast out.

Memory Tip

Think of an area that is 'not closed' ('open') where materials are 'thrown out' or 'placed' ('cast'). This helps you remember that opencast refers to mining that happens in an open space.

Visually Confused Words