Definition

A cylindrical part of a crank that connects to a rod or other component, allowing for movement in machinery.

Example

The mechanic replaced the worn crankpin to ensure the engine ran smoothly.

Conversation

I was reading about engines, and they mentioned the crankpin a lot.

Oh really? What exactly is a crankpin?

It's the part that connects the connecting rod to the crank, kind of like a pivot.

That makes sense! I never knew it had such a specific name.

Synonyms & Antonyms

Root Explanation

Crankpin is formed from "crank" (from Middle English "cranke", meaning a bent or crooked part) and "pin" (from Old English "pinn", meaning a small cylindrical object). The word "crankpin" refers to a pin that connects the crank to the rotating part of a machine, emphasizing its function as a pivotal component in machinery.

Memory Tip

Think of a 'bent part' ('crank') that connects to a 'small object' ('pin') in a machine — that's how a crankpin functions.

Visually Confused Words