Dictionary
moth•er•board
Pronunciation: (mu&thslash;'ur-bôrd", -bōrd"), [key]—
n. Computers.
a rigid, slotted board upon which other boards that contain the basic circuitry of a computer or of a computer component can be mounted. Cf.
board (def. 14).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.