motherboard

noun

moth·​er·​board ˈmə-t͟hər-ˌbȯrd How to pronounce motherboard (audio)
: the main circuit board especially of a microcomputer

Examples of motherboard in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The group follows Amelia into a secret lair in Silicon Valley where the '80s motherboard is locked away. Keith Langston, People.com, 28 June 2025 Unfortunately, no motherboard manufacturer (so far, anyway) has been willing to put both DDR4 and DDR5 slots on the same motherboard. Michael Kan, PC Magazine, 27 June 2025 This is your first step toward most major repairs, including battery or motherboard replacements. ArsTechnica, 26 June 2025 The motherboard is quite a bit smaller than the Framework Laptop 13 board, and the two are definitely not interchangeable. ArsTechnica, 18 June 2025 See All Example Sentences for motherboard

Word History

First Known Use

1971, in the meaning defined above

Time Traveler
The first known use of motherboard was in 1971

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Cite this Entry

“Motherboard.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/motherboard. Accessed 8 Jul. 2025.

Kids Definition

motherboard

noun
moth·​er·​board ˈmət͟h-ər-ˌbō(ə)rd How to pronounce motherboard (audio)
-ˌbȯ(ə)rd
: the main circuit board especially of a personal computer

More from Merriam-Webster on motherboard

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