Definition

A soft, silvery-white metal that is part of the rare-earth elements, used in making glass and lighting for movies and television.

Example

Lanthanum is often used in the production of high-quality glass for camera lenses.

Conversation

Have you ever heard of lanthanum?

Yeah, I think it's one of those rare earth elements, right?

Exactly! It's used in a lot of cool applications, like glass making.

That's interesting! I had no idea it was so useful.

Synonyms & Antonyms

Root Explanation

Lanthanum is derived from the Greek word "lanthanein" (meaning to be hidden or to escape notice) and the suffix "-um" which is commonly used in the naming of chemical elements. The name reflects the element's initial discovery, as it was not easily identifiable among other elements.

Memory Tip

Think of the Greek word for 'hidden' to remember that lanthanum was initially difficult to detect among other elements.

Visually Confused Words