Definition

A device or mechanism that stops or slows down something, often used in engineering or safety applications.

Example

The arrestor was installed to prevent the vehicle from rolling down the hill.

Conversation

Did you hear about the new arrestor they installed at the park?

Yeah, I saw it last time I was there; it looks pretty interesting.

I wonder how effective it actually is in stopping accidents.

I guess we'll find out if people start using it more often.

Synonyms & Antonyms

Root Explanation

Arrestor → It is formed from "ad-" (meaning to) and "restare" (meaning to stop or remain). The word "arrestor" refers to something that causes a stop or halt, particularly in a legal or physical context.

Memory Tip

Think of something that helps to 'stop' ('restare') something from continuing — that's why an 'arrestor' is related to stopping.

Visually Confused Words