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

quicksilver \quick"sil`ver\, n. quick living + silver; -- so
   called from its fluidity; cf. g. quecksilber, l. argentum
   vivum. see quick, a. chem.
   the metal mercury; -- so called from its resemblance to
   liquid silver.
   1913 webster

   quicksilver horizon, a mercurial artificial horizon. see
      under horizon.

   quicksilver water, a solution of mercury nitrate used in
      artificial silvering; quick water.
      1913 webster
see also:
quick quicksilver horizon horizon quicksilver water 

Quicksilver >> Q Words
Quicksilver, definition of term: Quicksilver
quicksilver_pag1.html

Horizon >> H Words
Horizon, definition of term: Horizon
horizon_pag1.html