motherboard

noun

moth·​er·​board ˈmə-t͟hər-ˌbȯrd 

: the main circuit board especially of a microcomputer

Examples of motherboard in a Sentence

Recent Examples on the Web

The hole allows installation and removal of CPU-cooler support plates that some coolers require to be mounted to the backs of motherboards. —PC Magazine, 16 Aug. 2025

That included a new mounting system—that allowed components to be placed closer together on the motherboard— alongside a new heat management system. —Janhoi McGregor, Forbes.com, 2 Aug. 2025

For materials like a specific crystal necessary for the motherboard to operate, Purism says there are no options for U.S. sourcing, meaning there’s no choice but to buy from China. —Maya Huter, NBC news, 19 June 2025

Don’t expect the space savings made by new motherboard technology to be filled with bigger batteries. —Janhoi McGregor, Forbes.com, 2 Aug. 2025

Word History

First Known Use

1971, in the meaning defined above

Rhymes for motherboard

• checkerboard
• clavichord
• fiberboard
• fibreboard
• fingerboard
• harpsichord
• notochord
• overboard
• overlord
• paperboard
• plasterboard
• shuffleboard

Kids Definition

motherboard

noun

moth·​er·​board ˈmət͟h-ər-ˌbō(ə)rd 

-ˌbȯ(ə)rd

: the main circuit board especially of a personal computer