资料来源 : pyDict

引得出的,萃取的,抽取的抽出物,精,熬汁

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

Extractive \Ex*tract"ive\, a. [Cf. F. extractif.]
   1. Capable of being extracted. ``Thirty grains of extractive
      matter.'' --Kirwan.

   2. Tending or serving to extract or draw out.

            Certain branches of industry are conveniently
            designated extractive: e.g., agriculture, pastoral
            and mining pursuits, cutting of lumber, etc.
                                                  --Cairnes.

Extractive \Ex*tract"ive\, n.
   1. Anything extracted; an extract.

            Extractives, of which the most constant are urea,
            kreatin, and grape sugar.             --H. N.
                                                  Martin.

   2. (Chem.)
      (a) A chemical principle once supposed to exist in all
          extracts. [Obs.]
      (b) Any one of a large class of substances obtained by
          extraction, and consisting largely of nitrogenous
          hydrocarbons, such as xanthin, hypoxanthin, and
          creatin extractives from muscle tissue.