ex·u·da·tion /ˌɛks(j)ʊˈdeʃən, ʃʊ-/
  滲出,分泌,滲出物
  ex·u·da·tion /ˌɛks(j)ʊˈdeʃən, ʃʊ-/ 名詞
  滲出(作用),溢泌(作用)(植物),滲出物
  Ex·u·da·tion n. The act of exuding; sweating; a discharge of humors, moisture, juice, or gum, as through pores or incisions; also, the substance exuded.
     Resins, a class of proximate principles, existing in almost all plants and appearing on the external surface of many of them in the form of exudations.   --Am. Cyc.
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  exudation
       n 1: a substance that oozes out from animal or plant pores [syn:
            exudate]
       2: the process of exuding; the slow escape of liquids from
          blood vessels through pores or breaks in the cell
          membranes [syn: transudation]