Source : WordNet®

rutherford
     n 1: a unit strength of a radioactive source equal to one million
          disintegrations per second
     2: British chemist who isolated nitrogen (1749-1819) [syn: {Daniel
        Rutherford}]
     3: British physicist (born in New Zealand) who discovered the
        atomic nucleus and proposed a nuclear model of the atom
        (1871-1937) [syn: {Ernest Rutherford}, {First Baron
        Rutherford}, {First Baron Rutherford of Nelson}]