noun

CNC

CNC (noun) means Computer numerical control: a system in which a computer directs a machine tool such as a mill, lathe or router, following a programmed design. Example: “The part was cut on a CNC machine.”

noun

Computer numerical control: a system in which a computer directs a machine tool such as a mill, lathe or router, following a programmed design.

"The part was cut on a CNC machine."

"CNC routers made short-run manufacturing affordable."

How to Use CNC

Learner’s notes

In plain EnglishA cutting or shaping machine controlled by a computer program.

When to use it

Technical — engineering and manufacturing.

Common pairings

CNC machine CNC router CNC machining

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Fill the Gap

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The part was cut on a _____ machine.

Etymology

An initialism of "computer numerical control," from the numerical-control machine tools of the mid twentieth century, which became computer-driven from the 1970s.

Origin: English

Frequently Asked Questions

What does CNC stand for?

Computer numerical control — a machine tool driven by a computer program rather than turned by hand. CNC mills, lathes, routers and plasma cutters all work this way.

What is a CNC machine used for?

Cutting, milling, drilling, engraving and shaping material — metal, wood, plastic or foam — to a precise digital design, repeatably and without manual guidance.