Definition

A device used to measure how much light is absorbed by a material, often used in photography and printing.

Example

The photographer used a densitometer to check the exposure of the film.

Conversation

Have you ever used a densitometer for your photography projects?

No, I haven't! What does it do exactly?

It measures the optical density of your negatives to ensure proper exposure.

That sounds really useful! I should consider getting one.

Synonyms & Antonyms

Root Explanation

Densitometer → It is formed from "densitas" (meaning density) and "metron" (meaning measure). The word refers to an instrument that measures the density of a substance.

Memory Tip

Think of measuring the 'density' ('densitas') of a material with a tool that 'measures' ('metron'). This helps you remember that a densitometer is used to measure density.

Visually Confused Words