资料来源 : Webster's Revised Unabridged Dictionary (1913)

Hydrochloric \Hy`dro*chlo"ric\, a. [Hydro-, 2 + chloric: cf. F.
   hydrochlorique.] (Chem.)
   Pertaining to, or compounded of, chlorine and hydrogen gas;
   as, hydrochloric acid; chlorhydric.

   {Hydrochloric acid} (Chem.), hydrogen chloride; a colorless,
      corrosive gas, {HCl}, of pungent, suffocating odor. It is
      made in great quantities in the soda process, by the
      action of sulphuric acid on common salt. It has a great
      affinity for water, and the commercial article is a strong
      solution of the gas in water. It is a typical acid, and is
      an indispensable agent in commercial and general chemical
      work. Called also {muriatic, & chlorhydric, acid}.

资料来源 : WordNet®

hydrochloric acid
     n : an aqueous solution of hydrogen chloride; a strongly
         corrosive acid