Source : WordNet®

MAO
     n 1: an enzyme that catalyzes the oxidation of many body
          compounds (e.g., epinephrine and norepinephrine and
          serotonin) [syn: {monoamine oxidase}]
     2: Chinese communist leader (1893-1976) [syn: {Mao Zedong}, {Mao
        Tsetung}]

Source : Free On-Line Dictionary of Computing

MAO
     
        An early {symbolic mathematics} system.
     
        [A. Rom, Celest Mech 1:309-319 (1969)].
     
        (1995-02-10)