‖ mnemonicon|niːˈmɒnɪkɒn| [Gr. µνηµονικόν, neut. sing. of µνηµονικός: see mnemonic.] A device to aid the memory. 1858Appleton's Cycl. III. 410 Bode's law is not a law, properly speaking, but simply a mnemonicon for remembering the distances of the planets from the sun.