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egestion

noun

- the discharge or expulsion of undigested material (food) from a cell in case of unicellular organisms, and from the digestive tract via the anus in case of multicellular organisms.

(Not to be confused with excretion, which is getting rid of waste formed from the chemical reaction of the body, such as in urine, sweat, etc.)

Word origin: from Latin ēgerere, ēgest-, to carry out