Definition

A chemical element that is a nonmetal, found in different forms such as powder, glassy, and crystalline. It is used in electronics, photography, and solar technology.

Example

Selenium is an important element in the production of solar panels.

Conversation

Have you ever heard of selenium?

Yeah, I think it’s used in electronics, right?

Exactly! It's also important in making solar cells.

That’s really interesting; I didn’t know it had so many uses!

Synonyms & Antonyms

Root Explanation

**Selenium** → The word is derived from the Greek "selēnē" (meaning moon). It was named after the element's discovery, as it was found to have properties similar to those of the element tellurium, which is named after the Earth ("tellus" in Latin). The name reflects the connection to the moon, as selenium was discovered in the same context as tellurium, which is associated with the Earth.

Memory Tip

Think of the Greek word for moon ('selēnē') to remember that selenium is named after the moon, reflecting its connection to the element tellurium.

Visually Confused Words