Source : Webster's Revised Unabridged Dictionary (1913)

Transudation \Tran`su*da"tion\, n. [Cf. F. transsudation.]
   1. The act or process of transuding.

   2. (Physics) Same as {Exosmose}.

Source : WordNet®

transudation
     n 1: a substance that transudes [syn: {transudate}]
     2: the process of exuding; the slow escape of liquids from
        blood vessels through pores or breaks in the cell
        membranes [syn: {exudation}]