Definition

An instrument used to separate and record different wavelengths of light or sound, allowing scientists to analyze the spectrum of the radiation.

Example

The astronomer used a spectrograph to study the light from distant stars.

Conversation

I just read about a new spectrograph that can analyze light from distant stars.

That's really cool! How does it work exactly?

It breaks down the light into different colors to study their composition.

Wow, that sounds like a powerful tool for astronomers.

Synonyms & Antonyms

Root Explanation

Spectrograph → It is formed from "spectrum" (from Latin *spectrum*, meaning appearance or image) and "-graph" (from Greek *grapho*, meaning to write or draw). The word refers to a device that draws or records the spectrum of light or other radiation.

Memory Tip

Think of a device that 'draws' ('graph') the 'spectrum' of light, helping you remember that a spectrograph records the appearance of light.

Visually Confused Words