n. [ L. defoedare, defoedatum, to defile; de- + foedare to foul, foedus foul. ] The act of making foul; pollution. [ Obs. ] [ 1913 Webster ]
n. [ L. defaecatio: cf. F. défécation. ] 1. The act of separating from impurities, as lees or dregs; purification. [ 1913 Webster ]
2. (Physiol.) The act or process of voiding excrement. [ 1913 Webster ]