Definition

A unit of frequency that is equal to one trillion hertz, often used in scientific contexts to measure very high frequencies.

Example

The laser operates at a frequency of one fresnel, which is essential for its performance.

Conversation

Have you ever heard of a fresnel in science class?

Yeah, I think it's related to waves or something, right?

Exactly! It’s a unit of frequency equal to one terahertz.

That's really interesting! I didn’t know that before.

Synonyms & Antonyms

Root Explanation

Fresnel → The term 'Fresnel' originates from the name of the French engineer Augustin-Jean Fresnel, who is known for his contributions to the design of lighthouses and optics. The word itself does not have a Latin or Greek root but is derived from a proper noun, specifically a surname, which has become associated with a type of lens he developed, known as the Fresnel lens.

Memory Tip

Think of Augustin-Jean Fresnel, the engineer who created the Fresnel lens, which is used in lighthouses to focus light. This helps you remember that 'Fresnel' refers to his innovative work in optics.

Visually Confused Words