Definition

The amount of energy or particles that are released from a surface in a specific area over time.

Example

The emittance of the material was measured to determine its efficiency in energy transfer.

Conversation

Have you ever heard about emittance in physics?

Not really, what does it mean?

It's basically the energy radiated by a surface per unit area.

Oh, that sounds interesting! I need to learn more about it.

Synonyms & Antonyms

Root Explanation

Emittance is formed from "emit" (from Latin "emittere", meaning to send out) and the suffix "-ance" (meaning the state or quality of). The word "emittance" refers to the state of being sent out or emitted.

Memory Tip

Think of 'sending out' ('emit') and the state of that action ('-ance') to remember that 'emittance' means the quality of being sent out.

Visually Confused Words