Definition

A measurement that expresses a ratio or rate per thousand parts of a whole.

Example

The permillage of alcohol in the blood is often used to determine legal intoxication levels.

Conversation

Have you ever heard about the concept of permillage?

Yeah, I think it relates to ratios, right?

Exactly! It's like measuring something per thousand units.

That's interesting, I might use that in my math class.

Synonyms & Antonyms

Root Explanation

Permillage is formed from "per-" (meaning through or by) and "mille" (from Latin, meaning thousand). The term refers to a measure of a quantity per thousand, similar to how percentage refers to a measure per hundred.

Memory Tip

Think of 'per' meaning through or by, and 'mille' meaning thousand — this helps you remember that permillage is a measure of something per thousand.

Visually Confused Words