Digester /(?)/

Di·gest·er

Digester

n.
  1. One who digests.
  2. A medicine or an article of food that aids digestion, or strengthens digestive power.
    Rice is . . . a great restorer of health, and a great digester.
  3. A strong closed vessel, in which bones or other substances may be subjected, usually in water or other liquid, to a temperature above that of boiling, in order to soften them.