Mercurammonium

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Mercurammonium \Mer`cur*am*mo"ni*um\, n. [Mercuric + ammonium.]
     (Chem.)
     A radical regarded as derived from ammonium by the
     substitution of mercury for a portion of the hydrogen.
     [1913 Webster]