What does "defecate" mean?

Defecate: To clear from impurities, as lees, dregs, etc.; to clarify; to purify; to refine. To defecate the dark and muddy oil of amber. Boyle.

Additional senses

  1. 2.To free from extraneous or polluting matter; to clear; to purify, as from that which materializes. We defecate the notion from materiality. Glanvill. Defecated from all the impurities of sense. Bp. Warburton.
  2. 3.To become clear, pure, or free. Goldsmith.
  3. 4.To void excrement.

Sources