D defs.my
Entry 1 sense Webster, 1913

Quicksilver

/kwĭk'sĭlvər/ · Quick·sil·ver · IPA /ˈkwɪkˌsɪlvɚ/
01 n. The metal mercury; -- so called from its resemblance to liquid silver.
  1. 1.
    The metal mercury; -- so called from its resemblance to liquid silver.(Chem.)
Phrases & compounds
Quicksilver horizon — a mercurial artificial horizon. See under Horizon.
Quicksilver water — a solution of mercury nitrate used in artificial silvering; quick water.