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

precipitate \precip"itate\, n. nl. praecipitatum: cf. f.
   pr'ecipit'e. chem.
   an insoluble substance separated from a solution in a
   concrete state by the action of some reagent added to the
   solution, or of some force, such as heat or cold. the
   precipitate may fall to the bottom whence the name, may be
   diffused through the solution, or may float at or near the
   surface.
   1913 webster

   2. atmospheric moisture condensed as rain or snow, etc.; same
      as precipitation5.
      pjc

   red precipitate old. chem, mercuric oxide hgo a heavy
      red crystalline powder obtained by heating mercuric
      nitrate, or by heating mercury in the air. prepared in the
      latter manner, it was the precipitate per se of the
      alchemists.

   white precipitate old chem.
      a a heavy white amorphous powder nh2.hgcl obtained
          by adding ammonia to a solution of mercuric chloride
          or corrosive sublimate; -- formerly called also
          infusible white precipitate, and now amido-mercuric
          chloride.
      b a white crystalline substance obtained by adding a
          solution of corrosive sublimate to a solution of sal
          ammoniac ammonium chloride; -- formerly called also
          fusible white precipitate.
          1913 webster
see also:
precipitation5 red precipitate hgo precipitate per se white precipitate nh2.hgcl 
infusible white precipitate amido-mercuric chloride fusible white precipitate 

Chloride >> C Words
Chloride, definition of term: Chloride
chloride_pag1.html

Sodium Chloride >> S Words
Sodium Chloride, definition of term: Sodium Chloride
sodium+chloride_pag1.html

Methyl Chloride >> M Words
Methyl Chloride, definition of term: Methyl Chloride
methyl+chloride_pag1.html

Silver Chloride >> S Words
Silver Chloride, definition of term: Silver Chloride
silver+chloride_pag1.html