mother board mother • mother carey's chicken · · · Info · Definitions · Characters · · mother board · · Text Common · · Latin · · Scripts 12 · · Length 3 · · Syllables Definitions · · · (noun) the main circuit board for a computer. Synonyms: CPU board, mother board. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 d latin small letter d U+0064 e latin small letter e U+0065 h latin small letter h U+0068 m latin small letter m U+006D o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074