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

Here’s a better look at that side-panel fan mount, along with the power supply bay and the removable drive tray that covers the motherboard tray’s rear-access hole. — Thomas Soderstrom, PC Magazine, 10 Oct. 2026

Later, Wozniak signed the computer’s motherboard, giving the lot signatures from both of Apple’s famous co-founders. — Daniel Cassady, ARTnews.com, 28 Sep. 2026

Lenovo sent an in-home repair technician who replaced the battery and the motherboard, but the problem didn’t go away. — Christopher Elliott, Mercury News, 25 Sep. 2026

Ganos said even the motherboard inside is slightly different. — Adrienne Davis, jsonline.com, 21 Aug. 2026

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