In a computer, the motherboard is the main electronic circuit board to which the microchips that perform important functions are attached.
motherboard in British English
(ˈmʌðəˌbɔːd)
noun
(in an electronic system) a printed circuit board through which signals between all other boards are routed
motherboard in American English
(ˈmʌθərˌbɔrd)
noun
the main interconnecting circuit board in an electronic device, into or on which the various subassemblies, as printed circuit boards, are plugged or wired
Examples of 'motherboard' in a sentence
motherboard
He placed the computer on its side so he could see the motherboard, which held all of its electronics.