D defs.my
Entry 1 sense Webster, 1913

Purpureo-

· Pur·pu·re·o- · IPA
01 A combining form signifying of a purple or purple-red color. Specif. (Chem.), used in designating certain brilliant purple-red compounds of…
  1. 1.
    A combining form signifying of a purple or purple-red color. Specif. (Chem.), used in designating certain brilliant purple-red compounds of cobaltic chloride and ammonia, similar to the roseocobaltic compounds. See Cobaltic.(Chem.) See: Cobaltic