noun

grinder

GRYNE-der/ˈɡraɪndər/

An implement that crushes or wears material down by pressure.

The coffee grinder turns whole beans into a fine powder.

A compact electric coffee grinder with whole beans visible in its transparent hopper and finely ground coffee collected directly beneath its outlet, making the machine’s pulverizing function clear.

Etymology

grindOld Englishrub together, crush into powder

+erEnglishperson or thing that performs an action

A grinder was originally someone who ground grain; the same action-name later applied to a machine. Grinding also developed the sense of smoothing or sharpening by friction, explaining the tool’s broader uses.

In context

cookingguide0:00

I'm gonna show you how to grind coffee beans things you will need a coffee bean grinder coffee beans a sealable container and refrigerator

Coffee Beans Grinding Guide

More examples

She twists the pepper grinder over her soup.
He uses a grinder to smooth the rough weld.
These meat grinders come apart for easy cleaning.

Forms

grinder · grinders

grind verb — To crush or smooth material through friction.

Similar words

mill: Usually processes grain or other material into finer particles.
crusher: Breaks material into pieces, not necessarily into fine particles.
sander: Smooths surfaces with abrasives rather than crushing material.